[Trihalomethane formation potential (THMFP) of soils in Guangdong Province].
Trihalomethane formation potentials were analyzed with the lixivia of typical soil samples in Guangdong Province. The results showed that the bulk THMFP contents of soil lixivia (b-THMFP) range from 0.7 to 36.8 micrograms/g with a median value of 10.6 micrograms/g, and the THMFP contents of 0.45 micron filtered soil lixivia, representing the THMFP contents of dissolved organic matter (d-THMFP), from 0.5 to 21.2 micrograms/g with a median value of 3.9 micrograms/g. Sample 19 (Calcareous soil) had the highest b-THMFP and d-THMFP while sample 20 (Purple soil) had the lowest b-THMFP and sample 5 (Latored soil) had the lowest d-THMFP. In general, suspended organic matter had great contribution to the THMFP. The physico-chemical properties, such as organic matter contents and contents of various oxides, as well as soil genetic horizon and vegetation are main factors dominating the THMFP levels in the soil.
Li
S
S
Institute of Environmental Science, Zhongshan University, Guangzhou 510275, China.
Qiu
R
R
Yang
X
X
Wang
P
P
Li
Y
Y
D012989:Soil Pollutants / Q000032:analysis*; D022882:Trihalomethanes / Q000032:analysis*
D012989:Soil Pollutants; D022882:Trihalomethanes