광주지역 빗물이용시설의 수질특성에 관한 연구

• Published in: 환경분석과 독성보건, 19(2) pp. 63 - 71
• Main Authors: 안상수, 위환, 윤상훈, 장서은, 정숙경, 조영관, 김은선
• Format: Journal Article
• Language: Korean
• Published: 한국환경분석학회 01.06.2016
• Subjects: 화학
• ISSN: 2672-0175; 2672-1139

To investigate the characteristics of rainwater quality as pH, color, turbidity, EC (electronic conductivity) and heavy metals in Gwangju area, 43 samples were collected at initial rainfall amounts over 3 mm/day during March to October in 2015. For 32 samples over 5 mm/day rainfall amount, pH was 4.8~6.5, and turbidity, color and NH3-N were 0.77~97.88 NTU, 4~16 degree, 0.6~12.0 mg/L, respectively, which are exceeding the drinking water standard. Heavy metals (except for Fe, Zn and Cu), volatile organic compounds and pesticides were not detected. Concentrations of color and turbidity in rainwater were decreased contrarily to the lapsed time at the storage, whereas the concentration of Zn was not so much changed compare to the initial state. Particulate matter (PM10) in air has the negative correlation with pH and positive correlations with turbidity, color and EC in rainwater. Seasonal variation showed that pH, DO, turbidity, color and EC in spring was lower than in summer with the influence of rainfall frequency and amount. Rainwater quality of pH, color and turbidity was lowered depending on the lapsed time for 10 days. pH was a little higher at concrete storage tank than at FRP storage tank because alkaline compound as CaCO3 flow out of the concrete surface, whereas turbidity was a little higher at FRP storage tank than at concrete storage tank. KCI Citation Count: 0