Organochlorine Pesticides in Surface Water of Jiuxi Valley, China: Distribution, Source Analysis, and Risk Evaluation

Table 3

Surface water OCPs concentration standards (μg·L⁻¹).

Country/Organization	γ-HCH	DDTs	Heptachlor	Aldrin	Dieldrin	Endrin	Isodrin
China	2.0	1.0	–	–	–	–	–
United States	0.95	1.1	0.52	3.0	0.24	0.086	–
European union	–	0.025	–	0.01^a
Canada	0.01	–	–	–	–	–	–

Note. “–” denotes “no data”; “^a” means the sum of aldrin, dieldrin, endrin, and isodrin.