Quality of Surface Water for lrrigation around Controlled Horticultural Area in Gyeongnam
1997
To investigate the water quality status of agricultural water source for greenhouse area in Gyeongnam, the surface water quality was examined six times from October in 1995 to March in 1996 at five areas in Gyeongnam. The pH values of surface water were in the range of 6.69.1 pH in Kimhae and Changnyong areas were out of range in 6.08.5 which was water quality standard for agriculture. The DO values of surface water were relatively high with average 10.0mg/l in Kimhae, Changnyong, Sacheon and Chinju areas except for Haman area. The BOD values of surface water exceeded water quality standard for agriculture(8.0mg/l) in three sites and one site in Haman and Sacheon, respectively. The COD values of surface water exceeded water quality standard for agriculture(8.0mg/l) in Kimhae, Changnyong and Haman. The values in surface water of Changnyong and Haman areas were 1.21mg/l and 2.75mg/l, respectively. The average values of in surface water was appropriate for agriculture. The values of and in Haman were the highest of those of the others. And Pb was below 0.1mg/l which was water quality standard for agriculture. The average values of Cu, Cd and Zn were below water quality standard for agriculture. Between COD and SS in surface water was positively correlated with r. BOD in surface water was positively correlated with and . Surface water pollution status of agricultural water source of greenhouse areas in Gyeongnam was in order of Chinju
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