Toxicological effects of polystyrene microplastics on earthworm (Eisenia fetida)

Phthalate induced oxidative stress and DNA damage in earthworms (Eisenia fetida).

Microplastics (MPs) are emerging contaminants that cause diverse impacts on soil ecosystems. As integral members of soil food webs, soil fauna exert key ecological functions such as litter decompos...

Interactions between microplastics and soil fauna: A critical review

Pulp and paper industry–based pollutants, their health hazards and environmental risks

Oxidative stress, growth inhibition, and DNA damage in earthworms induced by the combined pollution of typical neonicotinoid insecticides and heavy metals.

Ecotoxicological effects of fertilizers made from pulping waste liquor on earthworm Eisenia fetida.

Di-(2-ethylhcxyl) phthalate (DEHP) is applied as plasticizer, which results in the pollution of environment. In this study, the effects of DEHP on soil microbial functions, structure and genetic diversity were investigated. The concentration of DEHP in the soil were 0, 0.1, 1, 10 and 50 mg/kg, and the experimental period were 28 days. DEHP reduced the quantity, abundance, species dominance and homogeneity of soil microbes during the first 14 days. In addition, microbial utilization efficiency of carbon (carbohydrates, aliphatics, amino acids, metabolites) was impacted after 28 days, though the effects gradually weakened. Based on denaturing gradient gel electrophoresis and clone library analysis, in the presence of DEHP, the dominant microbes in the DEHP-contaminated soil were Sphingomonas and Bacillus, which belonged to the Acidobacteria and Proteobacteriav, respectively. With 0.1 or 1 mg/kg of DEHP, the relative abundances of Acidobacteria were higher, and with 10 or 50 mg/kg of DEHP, the relative abundances of Proteobacteria were higher.

Responses of Microbial Community to Di-(2-ethylhcxyl) Phthalate Contamination in Brown Soil.

An ultrasonic-assisted extraction methodology coupled with gas chromatography-mass spectrometer analytical technique was used to determine concentration of phthalic acid esters (PAEs) in typical greenhouse soil. The results showed that the developed method has a reliable recovery rate (80.78%–112.89%) and a low detection limit (10− 4 mg/kg) which met the requirements of residue determination. The analysis of 32 soil samples revealed that except for dimethyl phthalate, the concentration of other five PAEs was detected and followed the sequence di-(2-ethylhcxyl) phthalate > dibutyl phthalate > di-n-octyl phthalate > butylbenz phthalate > diethyl phthalate. Σ6PAEs concentrations ranged from 136.91 to 1121.74 µg/kg (mean 319.59 µg/kg). PAEs was closely correlated with soil pH and organic matter, but not with cultivation ages which indicates that the increase of cultivation age is not the main reason for the change of soil PAEs concentration.

Xianxu Li

Papers

Phthalate induced oxidative stress and DNA damage in earthworms (Eisenia fetida).

Ecotoxicological effects of fertilizers made from pulping waste liquor on earthworm Eisenia fetida.

Responses of Microbial Community to Di-(2-ethylhcxyl) Phthalate Contamination in Brown Soil.

Fate of Phthalic Acid Esters (PAEs) in Typical Greenhouse Soils of Different Cultivation Ages.

Toxicity of dibutyl phthalate to pakchoi (Brassica campestris L.): Evaluation through different levels of biological organization.