Results 171 to 180 of about 5,571 (217)

Pesticide and pharmaceutical pollution in South Africa: a review of sources, impacts, and policy gaps. [PDF]

Environ Monit Assess
Amaechi JM, Chow R, Petrik L, Jovanovic N.   +3 more
europepmc   +1 more source

The Mitigating Effects of Perilla Leaf Essential Oil on the Phytotoxicity of Fenoxaprop-P-Ethyl in Rice Seedlings. [PDF]

Plants (Basel)
Li J, Zhu Y, Sun L, Xu H, Su W, Xue F, Lu C, Tang W, Wu R.   +8 more
europepmc   +1 more source

Seasonal Influence on Pesticide Transfer and Bioaccumulation in Native Wetland Vegetation in an Agricultural Critical Zone. [PDF]

Environ Manage
Chaumet B, Riboul D, Probst JL, Eon P, Probst A.   +4 more
europepmc   +1 more source

Associations between pesticide use and rheumatoid arthritis among older farmers in the Agricultural Health Study. [PDF]

Sci Rep
Parks CG, Leyzarovich D, Hamra GB, Costenbader KH, Chen D, Hofmann JN, Freeman LEB, Sandler DP.   +7 more
europepmc   +1 more source

A comparative study of rac- and S-metolachlor toxicity to Daphnia magna

Ecotoxicology and Environmental Safety, 2006
Racemic product of metolachlor contains two R enantiomers and two S enantiomers. S-metolachlor is now widely used instead of rac-metolachlor because the former is more effective in herbicidal activity than the latter. The acute and chronic toxicities of rac- and S-metolachlor to Daphnia magna were determined and compared in this study.
Huijun Liu, Weiping Liu
exaly   +4 more sources

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Dissipation and Residue of S-metolachlor in Maize and Soil

Bulletin of Environmental Contamination and Toxicology, 2008
The purpose of this article was to establish a simple residue analysis method for S-metolachlor in maize and to study its dissipation and residue in maize field eco-system. The results showed that S-metolachlor declined rapidly in maize seedling and soil after application. The half-lives of S-metolachlor in maize seedlings in Beijing and Changchun were
Pengying, Cao, Xiangyun, Wang, Fengmao, Liu, Ercheng, Zhao, Lijun, Han   +4 more
openaire   +2 more sources

Effects of s-metolachlor on early life stages of marbled crayfish

Pesticide Biochemistry and Physiology, 2019
The effects of s-metolachlor chronic exposure at concentrations of 1.1 μg/L (maximal real environmental concentration in the Czech Republic), 11 μg/L (environmental relevant concentration) and 110 μg/L on early life stages of marbled crayfish (Procambarus virginalis) was evaluated under laboratory conditions.
Josef, Velisek, Alzbeta, Stara, Eliska, Zuskova, Jan, Kubec, Milos, Buric, Antonin, Kouba   +5 more
openaire   +2 more sources

Effects of the herbicides linuron and S-metolachlor on Perez's frog embryos

Chemosphere, 2018
Presence of pesticides in the environment and their possible effects on aquatic organisms are of great concern worldwide. The extensive use of herbicides in agricultural areas are one of the factors contributing to the known decline of amphibian populations.
Carla, Quintaneiro, Amadeu M V M, Soares, Marta S, Monteiro   +2 more
openaire   +2 more sources

Comparative toxicity of racemic metolachlor and S-metolachlor to Chlorella pyrenoidosa

Aquatic Toxicology, 2009
The toxicity of the chiral herbicides rac-metolachlor and S-metolachlor to Chlorella pyrenoidosa was determined and compared in this study, based on four different test endpoints: the growth inhibition rate, the chlorophyll a and chlorophyll b concentration, the catalase activity, and the ultrastructural morphology of cells.
Huijun, Liu, Mingyu, Xiong
openaire   +2 more sources