During the period from June 1st 1971 to November 30th 1971, studies on air polluton were made in Kwangju city. The city was divided into 6 areas : the downtown ares, the simi-downtown area, the heavy traffic area, the commercial area, the residential area, the park area, 13 surveying sites were selected each representing the characteristics of the area. The Measurement methods which were used are described below. Sulfur oxides were measured by PbO2 cylinder method, sulfur dioxides (SO2) and carbon monoxide (CO) by the MSA & Kitakwa detector, dustfall by the Deposit gauge method, and the noise levels by the Kanomax sound level meter. The results obtained are as follows : 1. The mean value of sulfur oxides in Kwangju city was 1.16 mg SO3/day/100cm2 PbO2, ranging from 0.45mg SO3/day/100cm2 PbO2 to 3.10mg SO3/day/100cm2 PbO2. 2. The mean value of sulfur oxides according to its specific area in the city were 1.45mg SO3/day/100cm2 PbO2 in heavy traffic area, 1.36 in downtown area, 1.23 in semi-downtown area, 1.11 in commercial area, 0.96 in residential area, and 1.07 in park area, respectively. 3. The average concentration of sulfur dioxide was 0.063 ppm from 2 to 5 P.M in Kwangju city. 4. The average concentration of sulfur dioxides according to its specific area, from 2 to 5 P.M, in the city were 0.084 ppm in heavy traffic area & downtown area, 0.067 in commercial area, 0.053 in semi-downtown area, 0.052 in residential area, and 0.036 in park area. 5. The average concentration of carbon monoxide was 22.3 ppm from 2 to 5 P.M in Kwangju city. 6. The average concentration of carbon monoxide according to its specific area, from 2 to 5 P.M, in the city were 27.0ppm in downtown traffic area, 26.3 in semi-downtown area, 23.0 in heavy traffic area, 21.7 in commercial area, 20.0 in residential area, and 17.6 in park area. 7. The mean value of dustfall in Kwangju city was 29.28 ton/Km2/month, ranging from 9.85 ton/Km2/month to 66.34 ton/Km2/month. 8. The mean values of dustfall according to its specific area in the city were 50.37 ton/Km2/month in semi-downtown area, 42.76 in heavy traffic area, 34.67 in downtown area, 17.77 in commercial area, 14.40 in park area, and 14.76 .in residential area. 9. The mean value of the soluble dust in Kwangju city was 10.23 ton/Km2/month and that of the insoluble dust was 19.05 ton/Km2/month. 10. The mean values of noise level in Kwangju city was 62 phon, ranging from 37phon to 88 phon. 11. The mean values of noise level according to its specific area in the city were 76 phon in heavy traffic area, 67 in semi-downtown area, 64 in downtown area, 59 in commercial area, 52 in part area, and 50 in residential area.
Air Pollution* ; Carbon Monoxide ; Dust ; Gwangju* ; Noise* ; Sulfur ; Sulfur Dioxide ; Sulfur Oxides

During the period from June 1st 1971 to November 30th 1971, studies on air polluton were made in Kwangju city. The city was divided into 6 areas : the downtown ares, the simi-downtown area, the heavy traffic area, the commercial area, the residential area, the park area, 13 surveying sites were selected each representing the characteristics of the area. The Measurement methods which were used are described below. Sulfur oxides were measured by PbO2 cylinder method, sulfur dioxides (SO2) and carbon monoxide (CO) by the MSA & Kitakwa detector, dustfall by the Deposit gauge method, and the noise levels by the Kanomax sound level meter. The results obtained are as follows : 1. The mean value of sulfur oxides in Kwangju city was 1.16 mg SO3/day/100cm2 PbO2, ranging from 0.45mg SO3/day/100cm2 PbO2 to 3.10mg SO3/day/100cm2 PbO2. 2. The mean value of sulfur oxides according to its specific area in the city were 1.45mg SO3/day/100cm2 PbO2 in heavy traffic area, 1.36 in downtown area, 1.23 in semi-downtown area, 1.11 in commercial area, 0.96 in residential area, and 1.07 in park area, respectively. 3. The average concentration of sulfur dioxide was 0.063 ppm from 2 to 5 P.M in Kwangju city. 4. The average concentration of sulfur dioxides according to its specific area, from 2 to 5 P.M, in the city were 0.084 ppm in heavy traffic area & downtown area, 0.067 in commercial area, 0.053 in semi-downtown area, 0.052 in residential area, and 0.036 in park area. 5. The average concentration of carbon monoxide was 22.3 ppm from 2 to 5 P.M in Kwangju city. 6. The average concentration of carbon monoxide according to its specific area, from 2 to 5 P.M, in the city were 27.0ppm in downtown traffic area, 26.3 in semi-downtown area, 23.0 in heavy traffic area, 21.7 in commercial area, 20.0 in residential area, and 17.6 in park area. 7. The mean value of dustfall in Kwangju city was 29.28 ton/Km2/month, ranging from 9.85 ton/Km2/month to 66.34 ton/Km2/month. 8. The mean values of dustfall according to its specific area in the city were 50.37 ton/Km2/month in semi-downtown area, 42.76 in heavy traffic area, 34.67 in downtown area, 17.77 in commercial area, 14.40 in park area, and 14.76 .in residential area. 9. The mean value of the soluble dust in Kwangju city was 10.23 ton/Km2/month and that of the insoluble dust was 19.05 ton/Km2/month. 10. The mean values of noise level in Kwangju city was 62 phon, ranging from 37phon to 88 phon. 11. The mean values of noise level according to its specific area in the city were 76 phon in heavy traffic area, 67 in semi-downtown area, 64 in downtown area, 59 in commercial area, 52 in part area, and 50 in residential area.
Air Pollution* ; Carbon Monoxide ; Dust ; Gwangju* ; Noise* ; Sulfur ; Sulfur Dioxide ; Sulfur Oxides

During the period from July 1st to the end of November 1970, a survey on air pollution and noise level was made in Seoul, Pusan and Taegu, the three largest cities in Korea. Each city was divided into 4-6 areas : the industrial area, the semi-industrial area, the commercial area, the residential area, the park area and the downtown area. Thirty eight sites were selected from each area. A. Method of Measurement : Dustfall was measured by the Deposit Gauge Method, sulfur oxides by PbO2 cylinder method, suspended particles by the Digital Dust Indicator, Sulfur dioxide (SO2) and Carbon Monoxide (CO) by the MSA & Kitakawa Detector and the noise levels by Rion Sound Survey meter. B. Results: 1. The mean value of dustfall in 3 cities was 30.42 ton/km2/month, ranging from 8.69 to 95.44. 2. The mean values of dustfall by city were 33.17 ton/km2/month in Seoul, 32.11 in Pusan and 25.97 in Taegu. 3. The mean values of dustfall showed a trend of decreasing order of semi-industrial area, downtown area, industrial area, commercial area, residential area, and park area. 4. The mean value of dustfall in Seoul by area were 52.32 ton/km2/month in downtown, 50.54 in semi-industrial area, 40.37 in industrial area, 24,19 in commercial area, 16.25 in park area and 15.39 in residential area in order of concentration. 5. The mean values of dustfall in Pusan by area were 48.27 ton/km2/month in semi-industrial area, 36.68 in industrial area 25.31 in commercial area, and 18.19 in residential area. 6. The mean values of dustfall in Taegu by area were 36.46 ton/km2/month in downtown area, 33.52 in industrial area, 20.37 in commercial area and 13.55 in residential area. 7. The mean values of sulfur oxides in 3 cities were 1.52mg SO3/day/100cm2 PbO2, ranging from 0.32 to 4.72. 8. The mean values of sulfur oxides by city were 1.89mg SO3/day/100cm2 PbO2, in Pusan, 1.64 in Seoul and 1.21 in Taegu. 9. The mean values of sulfur oxides by area in 3 cities were 2.16mg SO3/day/100cm2 PbO2 in industrial area, 1.69 in semi-industrial area, 1.50 in commercial area, 1.48 in downtown area, 1.32 in residential area and 0.94 in the park area, respectively. 10. The monthly mean values of sulfur oxides contents showed a steady increase from July reaching a park in November. 11. The mean values of suspended particles was 2.89mg/m3, ranging from 1.15 to 5.27. 12. The mean values of suspended particles by sity were 3.14mg/m3 in Seoul, 2.79 in Taegu and 2.25 in Pusan. 13. The mean values of noise level in 3 cities was 71.3 phon, ranging from 49 to 99 phon. 14. The mean values of noise level by city were 73 phon in Seoul, 72 in Pusan and 69 in Taegu in that order. 15. The mean values of noise level by area in 3 cities showed a decrease in the order of the downtown area, commercial area, industrial area and semi-industrial area, park area and residental area. 16. The mean values of noise level by area in 3 cities indicated that the highest level was detected in the downtown area in Seoul and Taegu and in the industrial area in Pusan. 17. The daily average concentration o sulfur dioxides (SO2) in 3 cities was 0.081 ppm, ranging from 0.004 to 0.196. 18. The daily average concentration of sulfur dioxides by city were 0.092 ppm in Seoul, 0.089 in Pusan and 0.062 in Taegu in that order. 19. the weekly average concentration of carbon monoxides (CO) was 27.59 ppm. 20. The daily average concentration of carbon monoxides by city were 33.37 ppm. in Seoul, 25.76 in Pusan and 23.65 in Taegu in that order. 21. The concentration of SO2 and CO reaches a peak from 6 p.m. to 8 p.m. 22. About 3 times probably the daily average concentration of CO could be detected in the downtown area probably due to heavy traffic emission in comparison with that in the industrial area. 23. As for daily variation of the concentration of SO2 and CO it was found that the concentration maintains relatively higher value during weekdays in the industrial area and on the first part of the week in the downtown area.
Air Pollution* ; Busan* ; Carbon ; Carbon Monoxide ; Daegu* ; Dust ; Korea ; Noise* ; Seoul* ; Sulfur ; Sulfur Dioxide ; Sulfur Oxides

OBJECTIVETo study the present situations of lung cancer in Wuhan and to explore the relationship between the potential years of life lost of lung cancer and air pollution, especially vehicle emissions.

METHODSData gathered between 1986 and 1995 in Wuhan city, including air pollution and tobacco production and data on lung cancer between 1991 and 2000 were collected extensively. Simple Correlation and Grey Relational Analysis were used to analyze the relationship of them.

RESULTSThere was a ascending tendency in variance of oxides of nitrogen (NOx). The degree of grey incidence (DGI) between the concentration of air pollutants and the male's or female's potential years of life lost of lung cancer (PYLL) were calculated respectively. In males, the values of DGI were 0.6702, 0.7071, 0.6199 on sulfur dioxide (SO2), NOx, total suspensions (TSP) respectively. In females,the values of DGI were 0.6188, 0.8555, 0.5842 according to the same order as listed above. Significant positive correlation was found between the concentration of NOx and with lung cancer in both males and females by spearman correlation test (rmale = 0.63523, P = 0.0484; rfemale = 0.76396, P = 0.0101).

CONCLUSIONWith the fast growing speed of the quantity of vehicles, pollution of vehicle emission-caused air pollution posed an important risk factor for lung cancer, despite the fact that tobacco smoking still played the leading role.

Air Pollution ; adverse effects ; China ; Female ; Humans ; Lung Neoplasms ; mortality ; Male ; Nitrogen Oxides ; analysis ; Sulfur Dioxide ; analysis ; Vehicle Emissions ; analysis

Objective: Injury to the airway, found in 25% to 35% of patients admitted to major burn center, is now the leading cause of death in burn patients. Significant inhalation injury can increase the patient mortality rates by up to 20%. Toxic compounds in smoke can include phosgene, ammonia, sulfur dioxide, and chlorine from plastics and various oxides and aldehydes from burning wood. These compound directly injure airway epithe hal cells, causing an intense inflammatory response with significant edema. After the critical problem is controlled with intensive care in inhalation burn patients, less critical but significant laryngeal function such as protection, phonation and deglutition may often be overlooked. METHOD & RESULT: We have experienced a male patient who was injured by inhalation of toxic compound in ship under cohstruction. He have suffered from pulmonary problem, bronchiohitis obhiterans. Voice disorder was assessed and managed by otolaryngologists after resolving the pulmonary lesion. CONCLUSION: Evaluation and treatment of patients suspected of inhalation injury should include anatomical and functional aspects of the larynx as well as critical problem of the airway.
Aldehydes ; Ammonia ; Burn Units ; Burns ; Burns, Inhalation ; Cause of Death ; Chlorine ; Deglutition ; Edema ; Humans ; Inhalation* ; Intensive Care ; Larynx ; Male ; Mortality ; Oxides ; Phonation ; Phosgene ; Plastics ; Ships ; Smoke ; Sulfur Dioxide ; Voice Disorders* ; Voice* ; Wood

In order to provide some basic data for the control of air water pollution in Korea, the suthors have estimated the amount of air and water pollutant emitted from industries which are employed over 20 employes. This study have done from July 1, 1972 to the end March 1973. The results are as follows: 1. Total number of establishments tith over 20 employees is 5,197 in Korea and the largest gorup establishments was the manufacturing of texttiles with 1,363 establishments(26.2%). 2. By order of number of employees it was observed that there 2,800 industries with 20-59(53.9%) employees, 1,101 with 50-99(21.2%), 571 with 100-199(11.0%), 501 with 200-499(9.6%) and 225with over 500(4.3%) respectively. 3. By order of regional distribution, it was observed that there were 2,257 industries in Seoul (43.3%) and 736 industries in Pusan(14.2%). 4. Industrial coal consumption was 596,154 M/T in 1972, but it'11 be 315,000 M/T in 1980, Fuel consumption was 4,972,000 K1 in 1972, and estimated volume will be 19,3700,000 K1 in 1980. 5. Ttotal amounts of air polutants emitted from industris by fuel combustion were sulfur oxides 79,459 tons, carbon monoxide 33,908 tons, particulate 31,304 tons and hydrocarbon 30,280 tons in 1972 but in 1990 there will be sulfur oxides 1,010,474 tons, nitrogen oxides 204,575 tons, carbon monoxide 68,014 tons, particulate 64,820 tons and hydrocarbon 67,622 tons, respectively. 6. Annual emitted air pollutants through the working processes were sulfur oxides 91,250 tons and nitrogen oxides 32,485 tons in 1972, but sulfur oxieds 118,625 tons and nitrogen oxides 42,555 tons will be present in 1980, respectively. 7. Annual emitted air pollutants by national unit area amounted to 0.77 tons/km2/year in 1965 and 14.7 ton/km2/year in 1980. 8. Total industrial wastes from all industries in Korea were estimated at 810,360 tons/day in 1972; manufacturing of chemicals and plastic products showed the highest amount of wastes at 470,000 tons/day. 9. The amounts of water pollutants due to industrial wastes were the .B.O.D., 471.5 tons/day,suspended solid 331.5 tons/day, CN, 2.3 tons/day, and Cr. 3. 4 tons/day in 1972, but it might be evident of a B.O.D of 3.388 tons/day, suspended solid 2,544 tons/day, CN 20.1 tons/day, and 26.5 tons/day in 1990. 10. Total population equivalent of B.O.D. was 943,000 in 1972, and the estimated value in 1990 will be6, 780, 000.
Air Pollutants ; Carbon Monoxide ; Coal ; Industrial Waste ; Korea* ; Nitrogen Oxides ; Plastics ; Seoul ; Sulfur ; Sulfur Oxides ; Water Pollutants* ; Water Pollution

In order to provide bases for the control of air pollutants in Korea, the author figured out the trend on the annual increase of air pollutants emitted in the process of combustions, and estimated the amounts of air pollutants of the future years from 1975 to 1981. 1) In 1973 the consumption rate of coal was 1.2 times of that of fuel oil. The consumption rate of them would be same in 1975 and 1977. However, the rate of fuel oil would exceed that of coal in 1979. In contrast with the rate in 1979. The one of coal would be increased faster and faster to show reverse trend of consumption in 1981. 2) The estimated amounts of air pollutants emissions in the years of 1973, 1975, 1977, 1979 and 1981 were 1,561,800, 1,921,700, 2,253,300, 20769,000, and 3,145,700 tons respectively. These indicated that the amount of air pollutants in 1981 would be about 2 times of that in 1973. 3) The amounts of sulfur oxides emissions in 1981 would be 2.3 times of that in 1973, nitrogen oxides 2.2 times, carbon monoxide 1.7 times, particulate 2.0 times and hydrocarbon 2.0 times. 4) The estimated amounts of air pollutants emissions per unit area(km) in the years of 1965, 1971, 1975 and 1980 were 5.2, 14.5, 19.5 and 28.7 tons respectively. These indicated that the amount of air pollutants emissions per unit area would increase 5.5 times in 1980 comparing the one in 1965.
Air Pollutants ; Carbon Monoxide ; Coal ; Fuel Oils ; Korea* ; Nitrogen Oxides ; Sulfur Oxides

Air Pollutants, Occupational ; analysis ; Environmental Monitoring ; methods ; Sulfur Oxides ; analysis ; Workplace

Anti-Infective Agents, Local ; therapeutic use ; Biosensing Techniques ; Chlorhexidine ; therapeutic use ; Chlorine Compounds ; therapeutic use ; Chromatography, Gas ; Dehydroascorbic Acid ; therapeutic use ; Dental Disinfectants ; therapeutic use ; Halitosis ; diagnosis ; therapy ; Humans ; Hydrogen Peroxide ; therapeutic use ; Mouthwashes ; therapeutic use ; Odorants ; prevention & control ; Oils, Volatile ; therapeutic use ; Oral Hygiene ; instrumentation ; Oxides ; therapeutic use ; Sodium Bicarbonate ; therapeutic use ; Sulfur Compounds ; analysis

Alteration of H-and M-isozymfs of Lactic Dehydrogenase(LDH) were observed in the various tissues after exposing the rats to 50ppm and 250ppm of sulfur dioxide. These isozymes of the respective tissue were separated by Diethlaminoethyl(DEAE)-cellulose from tile tissue homogenates of brain, lung and muscle, presenting the activities by rate of reduction of nicot inamids-adenine-dinucleotide (NAD+). Pure LDH and the coenzyme NAD (NAD) were directly treated with sulfur dioxide in vitro order to find out the direct to sulfur dioxide on LDH and NAD+ and the results were as follow. 1. In the normal tissues, the H-isozyme activity was dominant in the brain and heart, and tole M-isozyme in the muscle. 2. In the lung tissue of normal rats, there was no different between tole activity of H-and M-type of LDH. 3 When rats inhale sulfur dioxide gas in concentration of 50ppm and 230ppm, it appeared that the H-type tend to be suppressed in aerobic tissues and the M-type in anaerobic tissues. 4. In the lung tissue exposed to sulfur dioxide, both the LDH activities were suppressed. 5. It seems that LDH and the coenzyme (NAD ) are not directly affected by exposing in sulfur dioxide gas.
Animals ; Brain ; Heart ; Isoenzymes ; Lung ; NAD ; Rats ; Sulfur Dioxide* ; Sulfur*