http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
심상규,강창희,김용표 濟州大學校 基礎科學硏究所 1994 基礎科學硏究 Vol.7 No.1
Precipitation samples were collected at Kosan, Cheju Island over a period of 6 months. An automatic rain sampler was manufactured domestically and installed at Kosan station. All samples were collected on a weekly basis. Samples were analyzed for ??, ??, ??, ??, ??, ??, ??, ??, and pH and specific conductivity. The quality analysis of rain sample data were performed based on ion balance and specific conductivity. The pH of rain samples ranged between 4.6 to 6.6. Bicarbonate ion concentration were included in ion balance and specific conductivity calculations. The sum of cation concentrations were slightly greater than the sum of anion concentrations. Calculated specific conductivity was greater than measured specific conductivity. The most probable explanations for this discrepancy is “an anion too low or anion missing." Two criteria were used to identify outliners. They are 1) the difference between the sum of anion concentrations and cation concentration is more than 50μeq/l and 2) the difference between calculated and measured specific conductivity is more than 25%. Chemical analysis from several samples did not satisfy these quality control criteria. Volume weighted average concentrations were calculated. Dominant free acids in rain samples were ??, ??, ??, ?? ions in order of abundance. Non-seasalt sulfate comprises 76% of total sulfate.
강창희,김원형,홍상범,이기호,홍민선,심상규 濟州大學校 基礎科學硏究所 2000 基礎科學硏究 Vol.13 No.1
The rainwater samples were collected from the 1100 Site of hlt. Halla and Cheju city during the period of March in 1997 to August in 1998. and the major soluble ions were analyzed. The confidence of analytical data was confirmed by using the comparison methods such as ion-balance, electric conductivity and acid fraction. all of which correlation coefficients were above 0.94. The ionic strengths lower than 10^(-4)M, the basis for the pure rainwater, were found in 47% and 38% at 1100 Site and Cheju city, respectively. The precipitations in Cheju city were more influenced by the oceanic effect than those in 1100 Site. The acidity contribution was mainly by SO_(4)^(2-) and NO_(3)^(-) in both areas. and the organic acids have contributed to the acidity with only 5-7%. The neutralization factors by NH_(3) were about 46% at both 1100 site and Cheju city, whereas those by CaCO_(3) were 11% and 15% at 1100 site and Cheju city respectively, and the free acidity were both about 35% in average. From the MSA analysis. it was found that the air in Cheju island has been influenced by the pollution from the other areas. The sources of the rainwater components in 1100 Site and Cheju city were also studied with a factor analyzing way and the most probable factors were found to be anthropogenic, oceanic, and soil-sourced. The results of multiple regression analysis have shown that SO_(4)^(??) was dissolved mostly in the form of H_(2)SO_(4), CaSO_(4) and (NH_(4))_(2)SO_(4). and NO_(3)^(-) was in the form of HNO_(3), Ca(NO_(3))_(2) and NH_(4)NO_(3).
이승복,배귀남,진현철,김영성,문길주,심상규 한국대기환경학회 2004 한국대기환경학회지 Vol.20 No.1
Air pollutants were measured eight times from June 1999 to June 2002 on regular ferries cruising across the Yellow Sea between Incheon in Korea and Qingdao or Tianjin in China. PM_(10) and PM_(2.5_ were measured as particulate matters and SO₂, CO, and NOx were measured as gaseous pollutants. On each route, sampling was made, starting two hour after departure and ending two hour before arrival. Low concentrations of gaseous pollutants that were not much varied according to sampling period and location revealed that atmosphere over the sea was not directly affected by anthropogenic emissions. However, concentrations of fine particles were generally higher than those measured at Deokjeok Island. 50 km west of the western seashore, at similar periods. It was believed that considerable influence of China in the form of secondary pollutants was exerted over the sea.