지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록· 키워드
오류제보하기
We conclude the following with air pollution data measured from city measurement net administered and managed in Gwangju for the last 7 years from January in 2001 to December in 2007. In addition, some major statistics governed by Gwangju city and data administered by Gwangju as national official statistics obtained by estimating the amount of national air pollutant emission from National Institute of Environmental Research were used.
The results are as follows ;
1. The distribution by main managements of air emission factory is the following ; Gwangju City Hall(67.8%) ＞ Gwangsan District Office(13.6%) ＞ Buk District Office(9.8%) ＞ Seo District Office(5.5%) ＞ Nam District Office(3.0%) ＞ Dong District Office(0.3%) and the distribution by districts of air emission factory ; Buk District(32.8%) ＞ Gwangsan District(22.4%) ＞ Seo District(21.8%) ＞ Nam District(14.9%) ＞ Dong District(8.1%). That by types(Year 2004~2007 average) is also following ; Type 5(45.2%) ＞ Type 4(40.7%) ＞ Type 3(8.6%) ＞ Type 2(3.2%) ＞ Type 1(2.2%) and the most of them are small size of factory, Type 4 and 5.
2. The distribution by districts of the number of car registrations is the following ; Buk District(32.8%) ＞ Gwangsan District(22.4%) ＞ Seo District(21.8%) ＞ Nam District(14.9%) ＞ Dong District(8.1%) and the distribution by use of car fuel in 2001 ; Gasoline(56.3%) ＞ Diesel(30.3%) ＞ LPG(13.4%) ＞ etc.(0.2%). In 2007, there was no ranking change ; Gasoline(47.8%) ＞ Diesel(35.6%) ＞ LPG(16.2%) ＞ etc.(0.4%). The number of gasoline cars increased slightly, but that of diesel and LPG cars increased remarkably.
3. The distribution by items of the amount of air pollutant emission in Gwangju is the following; CO(36.7%) ＞ NOx(32.7%) ＞ VOC(26.7%) ＞ SOx(2.3%) ＞ PM-10(1.5%). The amount of CO and NOx, which are generally generated from cars, is very large percentage among them.
4. The distribution by mean of air pollutant emission(SOx, NOx, CO, VOC, PM-10) of each county for 5 years(2001~2005 ) is the following ; Buk District(31.0%) ＞ Gwangsan District(28.2%) ＞ Seo District(20.4%) ＞ Nam District(12.5%) ＞ Dong District(7.9%). The amount of air pollutant emission in Buk District, which has the most population, car registrations, and air pollutant emission businesses, was the highest. On the other hand, that of air pollutant emission in Dong District, which has the least population, car registrations, and air pollutant emission businesses, was the least.
5. The average rates of SOx for 5 years(2001~2005) in Gwangju is the following ; Non industrial combustion(59.5%) ＞ Combustion in manufacturing industry(20.4%) ＞ Road transportation(11.4%) ＞ Non-road transportation(3.8%) ＞ Waste disposal(3.7%) ＞ Production process(1.1%). And the distribution of average amount of SOx emission of each county is shown as Gwangsan District(33.3%) ＞ Buk District(28.0%) ＞ Seo District(19.3%) ＞ Nam District(10.2%) ＞ Dong District(9.1%).
6. The distribution of the amount of NOx emission in Gwangju is shown as Road transportation(59.1%) ＞ Non-road transportation(18.9%) ＞ Non industrial combustion(13.3%) ＞ Combustion in manufacturing industry(6.9%) ＞ Waste disposal(1.6%) ＞ Production process(0.1%). And the distribution of the amount of NOx emission from each county is the following ; Buk District(30.7%) ＞ Gwangsan District(28.8%) ＞ Seo District(20.5%) ＞ Nam District(12.2%) ＞ Dong District(7.8%).
7. The distribution of the amount of carbon monoxide emission in Gwangju is shown as Road transportation(82.0%) ＞ Non industrial combustion(10.6%) ＞ Non-road transportation(5.4%) ＞ Combustion in manufacturing industry(1.7%) ＞ Waste disposal(0.3%). And the distribution of the amount of carbon monoxide emission from each county is the following ; Buk District(33.0%) ＞ Seo District(22.3%) ＞ Gwangsan District(21.3%) ＞ Nam District(14.3%) ＞ Dong District(9.1%).
8. The distribution of the amount of Volatile Organic Compound emission in Gwangju is shown as Solvent utilization(69.5%) ＞ Road transportation(19.8%) ＞ Energy storage & transport(4.4%) ＞ Non-road transportation(2.8%) ＞ Waste disposal(2.4%) ＞ Non industrial combustion(0.5%) ＞ Production process(0.4%) ＞ Combustion in manufacturing industry(0.3%). And the distribution of the amount of Volatile Organic Compound emission from each county is the following ; Gwangsan District(36.8%) ＞ Buk District(28.7%) ＞ Seo District(17.8%) ＞ Nam District(10.4%) ＞ Dong District(6.3%).
9. The distribution of the amount of minute dust emission in Gwangju is shown as Road transportation(76.7%) ＞ Non-road transportation(16.3%) ＞ Non industrial combustion(6.1%) ＞ Combustion in manufacturing industry(0.7%) ＞ Waste disposal(0.2%) ＞ Production process(0.1%). And the distribution of the amount of minute dust emission from each county is the following ; Buk District(32.8%) ＞ Gwangsan District(26.0%) ＞ Seo District(19.5%) ＞ Nam District(13.2%) ＞ Dong District(8.5%).
10. According to the major source of emission of each items, that of oxides of sulfur is Non industrial combustion, heating of residence, business and agriculture and stockbreeding. And that of NOx, carbon monoxide, minute dust is Road transportation, emission of cars and two-wheeled vehicles. Also, that of VOC is Solvent utilization emission facilities due to Solvent utilization.
11. The concentration of sulfurous acid gas has been 0.004ppm since 2001 and there has not been no concentration change year by year. It is considered that the use of sulfurous acid gas is now reaching to the stabilization stage. This is found by the facts that the use of fuel is steadily changing from solid or liquid fuel to low sulfur liquid fuel containing very little amount of sulfur element or gas, so that nearly no change in concentration has been shown regularly.
12. Concerning changes of the concentration of throughout time, the concentration of NO has been shown relatively higher than that of NO2 between 6AM~1PM and the concentration of NO2 higher during the other time. The concentration of NOx(NO, NO2) has been relatively high during weekday evenings. This result shows that there is correlation between the concentration of NOx and car traffics as we can see the Road transportation which accounts for 59.1% among the amount of NOx emission.
13. 49.1~61.2% of PM-10 shows PM-2.5 concerning the relationship between PM-10 and PM-2.5 and PM-2.5 among dust accounts for 45.4%~44.5% of PM-10 during March and April which is the lowest rates. This proves that particles of yellow sand that are bigger than the size 2.5 ㎛ are sent more than those that are smaller from China. This result shows that particles smaller than 2.5 ㎛ among dust exist much during July~August and December~January and 76.7 % of minute dust is proved to be road transportation in Gwangju.
The results are as follows ;
1. The distribution by main managements of air emission factory is the following ; Gwangju City Hall(67.8%) ＞ Gwangsan District Office(13.6%) ＞ Buk District Office(9.8%) ＞ Seo District Office(5.5%) ＞ Nam District Office(3.0%) ＞ Dong District Office(0.3%) and the distribution by districts of air emission factory ; Buk District(32.8%) ＞ Gwangsan District(22.4%) ＞ Seo District(21.8%) ＞ Nam District(14.9%) ＞ Dong District(8.1%). That by types(Year 2004~2007 average) is also following ; Type 5(45.2%) ＞ Type 4(40.7%) ＞ Type 3(8.6%) ＞ Type 2(3.2%) ＞ Type 1(2.2%) and the most of them are small size of factory, Type 4 and 5.
2. The distribution by districts of the number of car registrations is the following ; Buk District(32.8%) ＞ Gwangsan District(22.4%) ＞ Seo District(21.8%) ＞ Nam District(14.9%) ＞ Dong District(8.1%) and the distribution by use of car fuel in 2001 ; Gasoline(56.3%) ＞ Diesel(30.3%) ＞ LPG(13.4%) ＞ etc.(0.2%). In 2007, there was no ranking change ; Gasoline(47.8%) ＞ Diesel(35.6%) ＞ LPG(16.2%) ＞ etc.(0.4%). The number of gasoline cars increased slightly, but that of diesel and LPG cars increased remarkably.
3. The distribution by items of the amount of air pollutant emission in Gwangju is the following; CO(36.7%) ＞ NOx(32.7%) ＞ VOC(26.7%) ＞ SOx(2.3%) ＞ PM-10(1.5%). The amount of CO and NOx, which are generally generated from cars, is very large percentage among them.
4. The distribution by mean of air pollutant emission(SOx, NOx, CO, VOC, PM-10) of each county for 5 years(2001~2005 ) is the following ; Buk District(31.0%) ＞ Gwangsan District(28.2%) ＞ Seo District(20.4%) ＞ Nam District(12.5%) ＞ Dong District(7.9%). The amount of air pollutant emission in Buk District, which has the most population, car registrations, and air pollutant emission businesses, was the highest. On the other hand, that of air pollutant emission in Dong District, which has the least population, car registrations, and air pollutant emission businesses, was the least.
5. The average rates of SOx for 5 years(2001~2005) in Gwangju is the following ; Non industrial combustion(59.5%) ＞ Combustion in manufacturing industry(20.4%) ＞ Road transportation(11.4%) ＞ Non-road transportation(3.8%) ＞ Waste disposal(3.7%) ＞ Production process(1.1%). And the distribution of average amount of SOx emission of each county is shown as Gwangsan District(33.3%) ＞ Buk District(28.0%) ＞ Seo District(19.3%) ＞ Nam District(10.2%) ＞ Dong District(9.1%).
6. The distribution of the amount of NOx emission in Gwangju is shown as Road transportation(59.1%) ＞ Non-road transportation(18.9%) ＞ Non industrial combustion(13.3%) ＞ Combustion in manufacturing industry(6.9%) ＞ Waste disposal(1.6%) ＞ Production process(0.1%). And the distribution of the amount of NOx emission from each county is the following ; Buk District(30.7%) ＞ Gwangsan District(28.8%) ＞ Seo District(20.5%) ＞ Nam District(12.2%) ＞ Dong District(7.8%).
7. The distribution of the amount of carbon monoxide emission in Gwangju is shown as Road transportation(82.0%) ＞ Non industrial combustion(10.6%) ＞ Non-road transportation(5.4%) ＞ Combustion in manufacturing industry(1.7%) ＞ Waste disposal(0.3%). And the distribution of the amount of carbon monoxide emission from each county is the following ; Buk District(33.0%) ＞ Seo District(22.3%) ＞ Gwangsan District(21.3%) ＞ Nam District(14.3%) ＞ Dong District(9.1%).
8. The distribution of the amount of Volatile Organic Compound emission in Gwangju is shown as Solvent utilization(69.5%) ＞ Road transportation(19.8%) ＞ Energy storage & transport(4.4%) ＞ Non-road transportation(2.8%) ＞ Waste disposal(2.4%) ＞ Non industrial combustion(0.5%) ＞ Production process(0.4%) ＞ Combustion in manufacturing industry(0.3%). And the distribution of the amount of Volatile Organic Compound emission from each county is the following ; Gwangsan District(36.8%) ＞ Buk District(28.7%) ＞ Seo District(17.8%) ＞ Nam District(10.4%) ＞ Dong District(6.3%).
9. The distribution of the amount of minute dust emission in Gwangju is shown as Road transportation(76.7%) ＞ Non-road transportation(16.3%) ＞ Non industrial combustion(6.1%) ＞ Combustion in manufacturing industry(0.7%) ＞ Waste disposal(0.2%) ＞ Production process(0.1%). And the distribution of the amount of minute dust emission from each county is the following ; Buk District(32.8%) ＞ Gwangsan District(26.0%) ＞ Seo District(19.5%) ＞ Nam District(13.2%) ＞ Dong District(8.5%).
10. According to the major source of emission of each items, that of oxides of sulfur is Non industrial combustion, heating of residence, business and agriculture and stockbreeding. And that of NOx, carbon monoxide, minute dust is Road transportation, emission of cars and two-wheeled vehicles. Also, that of VOC is Solvent utilization emission facilities due to Solvent utilization.
11. The concentration of sulfurous acid gas has been 0.004ppm since 2001 and there has not been no concentration change year by year. It is considered that the use of sulfurous acid gas is now reaching to the stabilization stage. This is found by the facts that the use of fuel is steadily changing from solid or liquid fuel to low sulfur liquid fuel containing very little amount of sulfur element or gas, so that nearly no change in concentration has been shown regularly.
12. Concerning changes of the concentration of throughout time, the concentration of NO has been shown relatively higher than that of NO2 between 6AM~1PM and the concentration of NO2 higher during the other time. The concentration of NOx(NO, NO2) has been relatively high during weekday evenings. This result shows that there is correlation between the concentration of NOx and car traffics as we can see the Road transportation which accounts for 59.1% among the amount of NOx emission.
13. 49.1~61.2% of PM-10 shows PM-2.5 concerning the relationship between PM-10 and PM-2.5 and PM-2.5 among dust accounts for 45.4%~44.5% of PM-10 during March and April which is the lowest rates. This proves that particles of yellow sand that are bigger than the size 2.5 ㎛ are sent more than those that are smaller from China. This result shows that particles smaller than 2.5 ㎛ among dust exist much during July~August and December~January and 76.7 % of minute dust is proved to be road transportation in Gwangju.
목차
Abstract
Ⅰ. 서론
Ⅱ. 연구내용 및 방법
Ⅲ. 결과 및 고찰
Ⅳ. 결론
참고문헌
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