TẦM SOÁT CÁC HÓA CHẤT BẢO VỆ THỰC VẬT TRONG ĐẤT RUỘNG LÚA BỊ NGẬP LỤT Ở MIỀN TRUNG VIỆT NAM

  • Lê Trường Giang
  • Trịnh Thu Hà
  • Dương Thị Hạnh
Từ khóa: pesticide; soil

Tóm tắt

The use of pesticides in agricultural cultivation, particularly wet rice planting, has become an inevitable tendency in recent years. For this reason, the uncontrolled utilization of these chemicals leads to pollution of the pesticides in arable lands. Additionally, due to frequent storms and floods, chemical dispersion and circulation have negative effects on the environment, organisms and human
health. The automatic identification and quantification system rely to gas chromatography database coupled with mass spectrocopy (GC-MS) (AIQS-DB) has simple, fast and high-precision analysis abilities, and thus the operation were used in this study. Up to 55 pesticides were observed in this research study, mainly insecticides (isoprocarb – 528 ng/g, 3-Hydroxycarbofuran – 433 ng/g and
dimethametryn – 216 ng/g). This study reveals that the presence of mixtures of pesticide residues in soils are the rule rather than the exception, indicating that environmental risk assessment procedures should be adapted accordingly to minimize related risks to soil life and beyond. This information can be used to implement monitoring programs for pesticide residues in soil and to trigger toxicity assessments of mixtures of pesticide residues on a wider range of soil species in order to perform more comprehensive and accurate risk assessments.

điểm /   đánh giá
Phát hành ngày
2021-01-19
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