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KMID : 1024519980070040531
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Journal of the Environmental Sciences
1998 Volume.7 No. 4 p.531 ~ p.540
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Ground Water Pollution Status of Agricultural Water Source of Greenhouse Area in Gyeongnam
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Lee Sung-Tae
Cho Ju-Sik
Lee Hong-Jae
Sohn Bo-Kyoon
Jung Yeun-Kyu
Heo Jong-Soo
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Abstract
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To examine water pollution status of agricultural water source of greenhouse area in Gyeongnam, the ground water quality was investigated six times at five areas in Gyeongnam from October in 1995 to March in 1996. pH of ground water were generally in the range of 5.9∼7.6. But a site in Changnyeong area was out of the range In 6.0∼8.5 which is water quality standard for agriculture. COD of ground water was below 2.8mg/l. NH4+-N contents in ground water was very low in all areas and the average of NO3’-N contents in Changnyeong and Chinju area was high with 13.2 and 11.5mg/l respectively. Hardness, SO42- and EC of ground water In Hmm were higher than any other area. Fe and Mn contents of ground water in Kimhae were higher than any other area with 7.17 and 0.95wt, respectively. Heavy metals such as Cu, Cd, Pb and Zn of ground waker were below water Quality standard far agriculture but some sites were over. Between COD and SS in ground water were not correlated with rInG.338,’but between COD and NH4+, -N were positively correlated. And EC was positively correlated with Ca2+, Mg2+ and SO42-. Ground water pollution status of agricultural water source of greenhouse area in Gyeongnam was genrrally high in order of Sacheon < Chinju < Hmn < Kimhae < Changnyeong.
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KEYWORD
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water pollution, greenhouse area, ground water, water quality standard for agriculture, pH, COD, NH4, N, NO3, N, EC, heavy metal
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