Negative ioner, også kaldet anioner, er
essentielle for dit helbred og neutraliserer skadelig mobilstråling (Se venligst nedenstående videnskabelige rapporter).
Anion i luften er ligesom vitaminer i fødevarer; de i høj grad til gavn for mennesker sundhed og sygdomsforebyggelse. Fordelene er forskellige for de respektive organer:
Åndedrætsorganerne: forbedrer lungefunktionen. 30 minutter efter anion indtag, lungen er i stand til at inhalere 20% mere ilt og udånder 14,5% mere kuldioxid
Til kardiovaskulære system: reducerer blodtrykket, forbedrer hjertemuskulaturen funktion og ernæring, letter dilatation af kapillære kar og øger hudtemperatur.
Nerve systemet: Giver øget energi til hele kroppen, forbedrer søvnkvaliteten, letter smerter og spændinger.
Stofskiftet: aktiverer forskellige enzymer i kroppen, reducerer blodsukkeret, kolesterol, øger blod calcium, øger mængden af kvælstof og kreatinin i urinen, accelererer knoglevækst, forebygger skørbug, Engelsk syge og vitaminmangel.
Blodet: øger antallet af hvide og røde blodlegemer, hæmoglobin, reticulocyt, blodplader, globin, øger PH læsning og forkorter bloddannende tid.
Til immunsystemet: forbedrer refleks-system og endotel-system og øger kroppens imunforsvar
Negative ioner findes naturligt ved steder som stranden, i bjergene, på landet, i fyrreskove, nær vandfald, kort sagt - alle de steder, som vi føler er behagelige.
Positive ioner findes: Indendørs, hvor et tv, computerskærm, eller lign er i drift.
Alle steder hvor luften er forurenet. Luftforurening nedbryder negative ioner.
På University of Pennsylvania Graduate Hospital og Frankford hospitaler i Philadelphia, har Dr. Kornblueh og hans medarbejdere administreret negativ-ion-behandlinger til hundredvis af patienter, der lider af høfeber eller astma. Af det samlede antal, har 63 procent oplevet delvis til fuldstændig frigørelse for symptomer som: nysen, øjne der løber i vand, næse kløe, nedbrudte fra mangel på søvn m.m. En læge fortalte mig: "efter femten minutter foran den negative ion-maskine, føler patienter sig så meget bedre, at de ikke ønsker at forlade ion-maskinen."
Negative og positive Ion Niveauer måles på forskellige steder
Beliggenhed . negative ioner positive ioner
Kontorer 70 1400
Industrielle områder 50 300
Shopping / spillehaller 220 280
boligområder 200 180
Skove 2500 800
Teknisk talt:
Ioner er ladede partikler i luften, der er dannet i naturen på forskellige måder. En måde er, når nok energi virker på et molekyle, såsom carbondioxid, oxygen eller vand for at skubbe en elektron fra molekyle efterlader en positivt ladet ion. Den forskudte elektron lægger sig til et nærliggende molekyle, som så bliver en negativt ladet ion. Det er den negative ion af oxygen, der påvirker os mest.
Åndedrætsorganerne: forbedrer lungefunktionen. 30 minutter efter anion indtag, lungen er i stand til at inhalere 20% mere ilt og udånder 14,5% mere kuldioxid
Til kardiovaskulære system: reducerer blodtrykket, forbedrer hjertemuskulaturen funktion og ernæring, letter dilatation af kapillære kar og øger hudtemperatur.
Nerve systemet: Giver øget energi til hele kroppen, forbedrer søvnkvaliteten, letter smerter og spændinger.
Stofskiftet: aktiverer forskellige enzymer i kroppen, reducerer blodsukkeret, kolesterol, øger blod calcium, øger mængden af kvælstof og kreatinin i urinen, accelererer knoglevækst, forebygger skørbug, Engelsk syge og vitaminmangel.
Blodet: øger antallet af hvide og røde blodlegemer, hæmoglobin, reticulocyt, blodplader, globin, øger PH læsning og forkorter bloddannende tid.
Til immunsystemet: forbedrer refleks-system og endotel-system og øger kroppens imunforsvar
Negative ioner findes naturligt ved steder som stranden, i bjergene, på landet, i fyrreskove, nær vandfald, kort sagt - alle de steder, som vi føler er behagelige.
Positive ioner findes: Indendørs, hvor et tv, computerskærm, eller lign er i drift.
Alle steder hvor luften er forurenet. Luftforurening nedbryder negative ioner.
På University of Pennsylvania Graduate Hospital og Frankford hospitaler i Philadelphia, har Dr. Kornblueh og hans medarbejdere administreret negativ-ion-behandlinger til hundredvis af patienter, der lider af høfeber eller astma. Af det samlede antal, har 63 procent oplevet delvis til fuldstændig frigørelse for symptomer som: nysen, øjne der løber i vand, næse kløe, nedbrudte fra mangel på søvn m.m. En læge fortalte mig: "efter femten minutter foran den negative ion-maskine, føler patienter sig så meget bedre, at de ikke ønsker at forlade ion-maskinen."
Negative og positive Ion Niveauer måles på forskellige steder
Beliggenhed . negative ioner positive ioner
Kontorer 70 1400
Industrielle områder 50 300
Shopping / spillehaller 220 280
boligområder 200 180
Skove 2500 800
Teknisk talt:
Ioner er ladede partikler i luften, der er dannet i naturen på forskellige måder. En måde er, når nok energi virker på et molekyle, såsom carbondioxid, oxygen eller vand for at skubbe en elektron fra molekyle efterlader en positivt ladet ion. Den forskudte elektron lægger sig til et nærliggende molekyle, som så bliver en negativt ladet ion. Det er den negative ion af oxygen, der påvirker os mest.
Hvad er negative ion'er og hvordan kan de hjælpe os
Oversat uddrag af artikel til WebMD
Negative ioner er lugtfrie, smagløse, og usynlige molekyler, vi indånder i overflod i visse miljøer såsom bjerge, vandfald, og strande. Når de når vores blodbaner, menes negative ioner at producere biokemiske reaktioner, der øger niveauet af serotonin (som er kroppens velvære hormon), der lindrer depression, stress, og øger vores energi.
Ioner er molekyler, der har, enten, vundet eller tabt en elektrisk ladning. De skabes i naturen når luftmolekyler brydes ned på grund af sollys, stråling og bevægeligt luft og vand. Du har måske oplevet negative ioner sidst du var på stranden eller gik under et vandfald. Når luften cirkulerer i bjerge og ved stranden indeholde de titusinder af negative ioner - Meget mere end den gennemsnitlige hjem eller kontorbygning, som indeholder dusinvis eller hundredvis, og mange gange helt ned til nul.
"Virkningen af dunkende bølger skaber negative luft ioner og vi ser det også umiddelbart efter foråret tordenvejr, hvor folk rapporterer at de er i bedre humør," siger ion forsker Michael Terman, PhD, fra Columbia University i New York.
Studier foretaget af Columbia University af mennesker med vinter og/eller kronisk depression viser, at negative ion-generatorer lindre depression lige så meget som antidepressiv medicin. "Det bedste er, at der er relativt ingen bivirkninger, men vi har stadig brug for at finde ud af passende doser og hvilke mennesker, det virker bedst på," siger han.
Vitaminer i luften?
Negative ioner øger tilførslen af ilt til hjernen; hvilket resulterer i højere årvågenhed, nedsat døsighed, og mere mental energi, "siger Pierce J. Howard, ph.d., forfatter til The Owners Manual for hjernen: Everyday Applications fra Mind Brain Research og direktør for forskning på Center for Applied Cognitive Sciences i Charlotte , NC
“Negative ioner kan også beskytte mod bakterier i luften, hvilket resulterer i nedsat irritation på grund af indånding af forskellige partikler, der gør du nyser, hoster, eller har en irritation i halsen." Og for en kæmpestor del af os, der er følsomme over for deres virkninger, kan negative ioner få os til at føle, at vi går på luft.
Pierce J. Howard. fortsætter: ”Jeg vil råde alle, der oplever klinisk depression at prøve negativ-ion-terapi under en lægens vejledning,
Publiceret 2. juni., 2003
WebMD Feature Anmeldt af Brunilda Nazario, MD
Kilder © 2003 WebMD, Inc. Alle rettigheder forbeholdes.
Link til hele artiklen på engelsk
Negative ioner er lugtfrie, smagløse, og usynlige molekyler, vi indånder i overflod i visse miljøer såsom bjerge, vandfald, og strande. Når de når vores blodbaner, menes negative ioner at producere biokemiske reaktioner, der øger niveauet af serotonin (som er kroppens velvære hormon), der lindrer depression, stress, og øger vores energi.
Ioner er molekyler, der har, enten, vundet eller tabt en elektrisk ladning. De skabes i naturen når luftmolekyler brydes ned på grund af sollys, stråling og bevægeligt luft og vand. Du har måske oplevet negative ioner sidst du var på stranden eller gik under et vandfald. Når luften cirkulerer i bjerge og ved stranden indeholde de titusinder af negative ioner - Meget mere end den gennemsnitlige hjem eller kontorbygning, som indeholder dusinvis eller hundredvis, og mange gange helt ned til nul.
"Virkningen af dunkende bølger skaber negative luft ioner og vi ser det også umiddelbart efter foråret tordenvejr, hvor folk rapporterer at de er i bedre humør," siger ion forsker Michael Terman, PhD, fra Columbia University i New York.
Studier foretaget af Columbia University af mennesker med vinter og/eller kronisk depression viser, at negative ion-generatorer lindre depression lige så meget som antidepressiv medicin. "Det bedste er, at der er relativt ingen bivirkninger, men vi har stadig brug for at finde ud af passende doser og hvilke mennesker, det virker bedst på," siger han.
Vitaminer i luften?
Negative ioner øger tilførslen af ilt til hjernen; hvilket resulterer i højere årvågenhed, nedsat døsighed, og mere mental energi, "siger Pierce J. Howard, ph.d., forfatter til The Owners Manual for hjernen: Everyday Applications fra Mind Brain Research og direktør for forskning på Center for Applied Cognitive Sciences i Charlotte , NC
“Negative ioner kan også beskytte mod bakterier i luften, hvilket resulterer i nedsat irritation på grund af indånding af forskellige partikler, der gør du nyser, hoster, eller har en irritation i halsen." Og for en kæmpestor del af os, der er følsomme over for deres virkninger, kan negative ioner få os til at føle, at vi går på luft.
Pierce J. Howard. fortsætter: ”Jeg vil råde alle, der oplever klinisk depression at prøve negativ-ion-terapi under en lægens vejledning,
Publiceret 2. juni., 2003
WebMD Feature Anmeldt af Brunilda Nazario, MD
Kilder © 2003 WebMD, Inc. Alle rettigheder forbeholdes.
Link til hele artiklen på engelsk
Læs Barron rapporten herunder og se hvordan negative ladede Ioner neutralisere mobilstråling
| barron-report-on-scalar-energy.pdf |
Excerpt from the scientific rapport: Evaluating and Mapping of Spatial Air Ion Quality Patterns in a Residential Garden Using a Geostatistic Method:
Negative air ions (NAI) produce biochemical reactions that increase the levels of the mood chemical serotonin in the environment. Moreover, they benefit both the psychological well being and the human body’s physiological condition. The aim of this research was to estimate and measure the spatial distributions of negative and positive air ions in a residential garden in central Taiwan. Negative and positive air ions were measured at thirty monitoring locations in the study garden from July 2009 to June 2010. Moreover, Kriging was applied to estimate the spatial distribution of negative and positive air ions, as well as the air ion index in the study area. The measurement results showed that the numbers of NAI and PAI differed greatly during the four seasons, the highest and the lowest negative and positive air ion concentrations were found in the summer and winter, respectively. Moreover, temperature was positively affected negative air ions concentration. No matter what temperature is, the ranges of variogram in NAI/PAI were similar during four seasons. It indicated that spatial patterns of NAI/PAI were independent of the seasons and depended on garden elements and configuration, thus the NAP/PAI was a good estimate of the air quality regarding air ions. Kriging maps depicted that the highest OPEN ACCESS Int. J. Environ. Res. Public Health 2011, 8 2305 negative and positive air ion concentration was next to the waterfall, whereas the lowest air ions areas were next to the exits of the garden. The results reveal that waterscapes are a source of negative and positive air ions, and that plants and green space are a minor source of negative air ions in the study garden. Moreover, temperature and humidity are positively and negatively affected negative air ions concentration, respectively. The proposed monitoring and mapping approach provides a way to effectively assess the patterns of negative and positive air ions in future landscape design projects. Keywords: negative air ions; positive air ions; geostatistic method; Kriging; garden; air ion index 1. Introduction Studies on negative air ions (NAI) began in the 1970s [1,2]. Negative ions in the air were found to act on the parasympathetic nervous system and relax the nerves, whereas positive air ions (PAI) were found to act on and excite the sympathetic nerves [3]. NAI numbers increase under the influence of various factors such as movement of water and water drops, radioactive decay, ultraviolet rays, coronal discharge and lightning [1,2,4]. Waterscapes are a major landscape element in garden landscapes. At some large waterfalls, negative air ions are particularly numerous, reaching several thousands and even tens of thousands per cubic centimeter. On the other hand, in polluted city air, in closed rooms, in moving cars and aircraft, near television sets and computers, the amount of negative air ions falls dramatically to the tens per cubic centimeter [5]. Many cases have demonstrated the beneficial human health effects of negative air ions. Krueger [6] investigated the biochemical mechanisms of the beneficial biological effects of negative air ion inhalation and found it to be useful in decreasing excessive levels of the neurotransmitter serotonin. Wakamura [7] applied NAI to reduce rectal temperature. Nakane et al. [8] found that NAI were effective for recovering from the stress caused by computer operation. Conversely, positive air ions can cause excessive stress after brief exposure. After longer exposure, a state of exhaustion can be observed in the form of a lowered norepinephrine level [9]. Researchers have demonstrated that NAI play a role in reducing the transmission of infection in healthcare places [2,10,11] and several authors have reported that NAI inhibit the growth of microorganisms [12]. A space full of excessive NAI is reputed to be associated with quicker recovery from exhausting exercise, sounder sleep, fewer bodily aches and pains, and fewer respiratory complaints [13]. Moreover, some studies have also found that NAI can remove particles from indoor environments [14,15]. The types of negative ion generation can be broadly classified as water-generated negative ions and electrically-generated negative ions. Electrically-generated negative ions are produced by the electrical discharge from thunder, radiant energy and ultraviolet light in the natural environment. Air molecules provide the energy which causes electrons to be charged. Discharged electrons combine with oxygen atoms to create negatively-charged air ions [3]. Water-generated negative ions naturally occur around waterfalls and are created by the ionization of water through the Lenard effect [16]. When water breaks up into small droplets, electrons are arranged on the surface of small water droplets in a Int. J. Environ. Res. Public Health 2011, 8 2306 dipolar fashion [3]. Negatively-charged oxygen molecules combine with several water molecules to form negative ion clusters: O2(H2O)n [17]. Water-generated negative ions essentially are considered to be a natural source of negative air ions [4]. NAI produced from water have a longer life in air than do electrically-generated negative ions, and they do not adversely affect the body. Water-generated ions exhibit suppression of tumor growth and improvement of cachexia [17]. Many studies have demonstrated that water-generated negative ions are associated with improvements in mood and physical health, and recent research has begun to support the view that negative ions have a net positive effect on health [17-21] and beneficial effects for the respiratory system [22].
The rest of the article is about how ions behave at different temperatures.
Negative air ions (NAI) produce biochemical reactions that increase the levels of the mood chemical serotonin in the environment. Moreover, they benefit both the psychological well being and the human body’s physiological condition. The aim of this research was to estimate and measure the spatial distributions of negative and positive air ions in a residential garden in central Taiwan. Negative and positive air ions were measured at thirty monitoring locations in the study garden from July 2009 to June 2010. Moreover, Kriging was applied to estimate the spatial distribution of negative and positive air ions, as well as the air ion index in the study area. The measurement results showed that the numbers of NAI and PAI differed greatly during the four seasons, the highest and the lowest negative and positive air ion concentrations were found in the summer and winter, respectively. Moreover, temperature was positively affected negative air ions concentration. No matter what temperature is, the ranges of variogram in NAI/PAI were similar during four seasons. It indicated that spatial patterns of NAI/PAI were independent of the seasons and depended on garden elements and configuration, thus the NAP/PAI was a good estimate of the air quality regarding air ions. Kriging maps depicted that the highest OPEN ACCESS Int. J. Environ. Res. Public Health 2011, 8 2305 negative and positive air ion concentration was next to the waterfall, whereas the lowest air ions areas were next to the exits of the garden. The results reveal that waterscapes are a source of negative and positive air ions, and that plants and green space are a minor source of negative air ions in the study garden. Moreover, temperature and humidity are positively and negatively affected negative air ions concentration, respectively. The proposed monitoring and mapping approach provides a way to effectively assess the patterns of negative and positive air ions in future landscape design projects. Keywords: negative air ions; positive air ions; geostatistic method; Kriging; garden; air ion index 1. Introduction Studies on negative air ions (NAI) began in the 1970s [1,2]. Negative ions in the air were found to act on the parasympathetic nervous system and relax the nerves, whereas positive air ions (PAI) were found to act on and excite the sympathetic nerves [3]. NAI numbers increase under the influence of various factors such as movement of water and water drops, radioactive decay, ultraviolet rays, coronal discharge and lightning [1,2,4]. Waterscapes are a major landscape element in garden landscapes. At some large waterfalls, negative air ions are particularly numerous, reaching several thousands and even tens of thousands per cubic centimeter. On the other hand, in polluted city air, in closed rooms, in moving cars and aircraft, near television sets and computers, the amount of negative air ions falls dramatically to the tens per cubic centimeter [5]. Many cases have demonstrated the beneficial human health effects of negative air ions. Krueger [6] investigated the biochemical mechanisms of the beneficial biological effects of negative air ion inhalation and found it to be useful in decreasing excessive levels of the neurotransmitter serotonin. Wakamura [7] applied NAI to reduce rectal temperature. Nakane et al. [8] found that NAI were effective for recovering from the stress caused by computer operation. Conversely, positive air ions can cause excessive stress after brief exposure. After longer exposure, a state of exhaustion can be observed in the form of a lowered norepinephrine level [9]. Researchers have demonstrated that NAI play a role in reducing the transmission of infection in healthcare places [2,10,11] and several authors have reported that NAI inhibit the growth of microorganisms [12]. A space full of excessive NAI is reputed to be associated with quicker recovery from exhausting exercise, sounder sleep, fewer bodily aches and pains, and fewer respiratory complaints [13]. Moreover, some studies have also found that NAI can remove particles from indoor environments [14,15]. The types of negative ion generation can be broadly classified as water-generated negative ions and electrically-generated negative ions. Electrically-generated negative ions are produced by the electrical discharge from thunder, radiant energy and ultraviolet light in the natural environment. Air molecules provide the energy which causes electrons to be charged. Discharged electrons combine with oxygen atoms to create negatively-charged air ions [3]. Water-generated negative ions naturally occur around waterfalls and are created by the ionization of water through the Lenard effect [16]. When water breaks up into small droplets, electrons are arranged on the surface of small water droplets in a Int. J. Environ. Res. Public Health 2011, 8 2306 dipolar fashion [3]. Negatively-charged oxygen molecules combine with several water molecules to form negative ion clusters: O2(H2O)n [17]. Water-generated negative ions essentially are considered to be a natural source of negative air ions [4]. NAI produced from water have a longer life in air than do electrically-generated negative ions, and they do not adversely affect the body. Water-generated ions exhibit suppression of tumor growth and improvement of cachexia [17]. Many studies have demonstrated that water-generated negative ions are associated with improvements in mood and physical health, and recent research has begun to support the view that negative ions have a net positive effect on health [17-21] and beneficial effects for the respiratory system [22].
The rest of the article is about how ions behave at different temperatures.
Negative Air Ions and Their Effects on Human Health and Air Quality Improvement
Negative air ions (NAIs) have been discovered for more than 100 years and are widely used for air cleaning. Here, we have carried out a comprehensive reviewing on the effects of NAIs on humans/animals, and microorganisms, and plant development. The presence of NAIs is credited for increasing psychological health, productivity, and overall well-being but without consistent or reliable evidence in therapeutic effects and with controversy in anti-microorganisms. Reports also showed that NAIs could help people in relieving symptoms of allergies to dust, mold spores, and other allergens. Particulate matter (PM) is a major air pollutant that affects human health. Experimental data showed that NAIs could be used to high-efficiently remove PM. Finally, we have reviewed the plant-based NAI release system under the pulsed electric field (PEF) stimulation. This is a new NAI generation system which releases a huge amount of NAIs under the PEF treatment. The system may be used to freshen indoor air and reduce PM concentration in addition to enriching oxygen content and indoor decoration at home, school, hospital, airport, and other indoor areas. lINK TIL ARTIKEL
Negative-Ions and ComputersSeptember 25, 1981 / T. Neil Davis
Evidence seems to be mounting that ion concentrations in the air do affect how people feel. Further, there is evidence that the new trend toward using computerized equipment in offices may be creating a special problem.
Outdoor air contains about a thousand positive and negative charges (ions) within each cubic centimeter. Cosmic rays coming into the earth from the sun and elsewhere break apart air molecules and thereby create much of the ionization that exists in the air. Since more cosmic rays come in at the high latitudes, the high-latitude air normally has a higher proportion of ionized air molecules or molecular clusters. However, in cities and in confined spaces such as offices, processes take place to reduce the number of ions. One important process is attachment of charge-carrying molecular clusters to pollution particles in the air. When that happens both the ions and the pollution particles tend to be swept out of the air by the electric field that exists naturally near the earth's surface.
The loss of ion concentration is thought to be harmful because it does seem that high ion concentrations do make people feel better--just why, doesn't seem to be clearly understood. High ion concentrations also apparently inhibit bacterial growth and perhaps foster plant growth. The good effects seem to be attributed to high concentrations of negative ions rather than positive ones; generally, the concentration of both types go together, except in small volumes of air perhaps only a few feet across.
Now, a new problem arises according to an article in the August 1981 issue of Mini-Micro Systems, a publication for computer buffs. The problem has to do with CRTs, the cathode ray tubes contained in video terminals and the newfangled typing stations that seem to be sprouting on desktops all over the country. In the Geophysical Institute alone I counted 70 CRTs, not including cathode ray tubes in test equipment.
The electric field caused by the positive static charge that appears on a CRT in normal operation sweeps the nearby air of negative charges, thereby depleting the negative-ion concentration in the immediate vicinity. Apparently when the ion concentration is lowered by this or any other means--air conditioning does it too--workers complain of headaches, lethargy, dizziness and nausea.
One experiment performed in England on 54 individuals at a computer site seems rather convincing. Negative-ion generators were installed, but, unknown to the persons being tested, the generators were not turned on for four weeks. During that period the negative-ion concentration was about 550 per cubic cm. A secret switching on the generators during the next eight weeks of the test raised the ion concentration to 3,500 per cubic cm, several times that found in normal outside air. After the experimenters turned on the ion generators, they found that the tested persons had fewer headaches and other complaints than before. Only five percent then said they had headaches, whereas 20 percent of the workers complained of headaches before the ion generators were turned on. The number reporting dizziness and nausea dropped by more than half, down to less than one percent.
Other English tests indicate that the more complex the task a person tries, the more the individual is affected by negative-ion levels. Also females are more responsive than males to negative-ion depletion or enrichment.
Fraudulent or questionable claims made some years ago about the benefits of ion generators muddy the issue of how important ion concentrations are in air around workers. Consequently, there now probably will have to be overwhelming evidence that ion levels do affect people before widespread attempts are made to ensure that proper levels are maintained. But if that comes to pass, we may see regulations requiring installation of ion generators in rooms where air conditioning and CRTs are used.
Evidence seems to be mounting that ion concentrations in the air do affect how people feel. Further, there is evidence that the new trend toward using computerized equipment in offices may be creating a special problem.
Outdoor air contains about a thousand positive and negative charges (ions) within each cubic centimeter. Cosmic rays coming into the earth from the sun and elsewhere break apart air molecules and thereby create much of the ionization that exists in the air. Since more cosmic rays come in at the high latitudes, the high-latitude air normally has a higher proportion of ionized air molecules or molecular clusters. However, in cities and in confined spaces such as offices, processes take place to reduce the number of ions. One important process is attachment of charge-carrying molecular clusters to pollution particles in the air. When that happens both the ions and the pollution particles tend to be swept out of the air by the electric field that exists naturally near the earth's surface.
The loss of ion concentration is thought to be harmful because it does seem that high ion concentrations do make people feel better--just why, doesn't seem to be clearly understood. High ion concentrations also apparently inhibit bacterial growth and perhaps foster plant growth. The good effects seem to be attributed to high concentrations of negative ions rather than positive ones; generally, the concentration of both types go together, except in small volumes of air perhaps only a few feet across.
Now, a new problem arises according to an article in the August 1981 issue of Mini-Micro Systems, a publication for computer buffs. The problem has to do with CRTs, the cathode ray tubes contained in video terminals and the newfangled typing stations that seem to be sprouting on desktops all over the country. In the Geophysical Institute alone I counted 70 CRTs, not including cathode ray tubes in test equipment.
The electric field caused by the positive static charge that appears on a CRT in normal operation sweeps the nearby air of negative charges, thereby depleting the negative-ion concentration in the immediate vicinity. Apparently when the ion concentration is lowered by this or any other means--air conditioning does it too--workers complain of headaches, lethargy, dizziness and nausea.
One experiment performed in England on 54 individuals at a computer site seems rather convincing. Negative-ion generators were installed, but, unknown to the persons being tested, the generators were not turned on for four weeks. During that period the negative-ion concentration was about 550 per cubic cm. A secret switching on the generators during the next eight weeks of the test raised the ion concentration to 3,500 per cubic cm, several times that found in normal outside air. After the experimenters turned on the ion generators, they found that the tested persons had fewer headaches and other complaints than before. Only five percent then said they had headaches, whereas 20 percent of the workers complained of headaches before the ion generators were turned on. The number reporting dizziness and nausea dropped by more than half, down to less than one percent.
Other English tests indicate that the more complex the task a person tries, the more the individual is affected by negative-ion levels. Also females are more responsive than males to negative-ion depletion or enrichment.
Fraudulent or questionable claims made some years ago about the benefits of ion generators muddy the issue of how important ion concentrations are in air around workers. Consequently, there now probably will have to be overwhelming evidence that ion levels do affect people before widespread attempts are made to ensure that proper levels are maintained. But if that comes to pass, we may see regulations requiring installation of ion generators in rooms where air conditioning and CRTs are used.