Publication Date:
2018-11-06
Description:
The environmental fate and bioaccumulation of linuron in a laboratory microcosm were investigated at three flow velocity over a period of 10 days. Linuron concentrations were quantified in the environmental media water, sediment, algae and fish after 1, 2, 4, 7 and 10 days of exposure. The results showed that rapid decrease in water phase of the microcosm was occurred, linuron had decreased to 56.7%-67.9% of the initial concentrations on day 10, and reduction rates showed an obvious increase with increased flow velocity. The linuron concentrations in the sediment were 1.25-2.13 ng/g on day 10, which were much less than that in algae (387-477 ng/g). The linuron was widely detected in fish tissues, and the bioaccumulation concentrations were generally in the following order: liver 〉 kidney 〉 brain 〉 skin 〉 muscle 〉 gill at an early stage of exposure. However, the ability of liver detoxification increased with the exposure time and exposure flow velocity, so that the...
Print ISSN:
1755-1307
Electronic ISSN:
1755-1315
Topics:
Geography
,
Geosciences
,
Physics
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