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Chidya R, Derbalah A, Abdel-Dayem S, et al. Ecotoxicological and human health risk assessment of selected pesticides in Kurose River, Higashi-Hiroshima City (Japan). Water Environ Res. 2021;e1676doi: 10.1002/wer.1676.
Chidya, R., Derbalah, A., Abdel-Dayem, S., Kaonga, C., & Sakugawa, H. (2021). Ecotoxicological and human health risk assessment of selected pesticides in Kurose River, Higashi-Hiroshima City (Japan). Water environment research : a research publication of the Water Environment Federation, e1676. https://doi.org/10.1002/wer.1676
Chidya, Russel, et al. "Ecotoxicological and human health risk assessment of selected pesticides in Kurose River, Higashi-Hiroshima City (Japan)." Water environment research : a research publication of the Water Environment Federation vol. (2021): e1676. doi: https://doi.org/10.1002/wer.1676
Chidya R, Derbalah A, Abdel-Dayem S, Kaonga C, Sakugawa H. Ecotoxicological and human health risk assessment of selected pesticides in Kurose River, Higashi-Hiroshima City (Japan). Water Environ Res. 2021 Dec 07;e1676. doi: 10.1002/wer.1676. Epub 2021 Dec 07. PMID: 34874095.
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Water Environ Res. 2021 Dec 07;e1676. doi: 10.1002/wer.1676. Epub 2021 Dec 07.

Ecotoxicological and human health risk assessment of selected pesticides in Kurose River, Higashi-Hiroshima City (Japan).

Water environment research : a research publication of the Water Environment Federation

Russel Chidya, Aly Derbalah, Sherif Abdel-Dayem, Chikumbusko Kaonga, Hiroshi Sakugawa

Affiliations

  1. Graduate School of Biosphere Science, Department of Environmental Dynamics and Management, Hiroshima University, Higashi-Hiroshima, Japan.
  2. Faculty of Environmental Sciences, Department of Water and Sanitation, Mzuzu University, Mzuzu 2, Malawi.
  3. Department of Pesticides Chemistry and Toxicology, Faculty of Agriculture, Kafrelsheikh University, Kafrelsheikh, Egypt.
  4. Physics and Biochemical Sciences Department, University of Malawi, The Polytechnic, Blantyre 3, Malawi.

PMID: 34874095 DOI: 10.1002/wer.1676

Abstract

This study conducted an integrated approach combining monitoring and risk assessment of pesticides in Kurose River and its catchment area, Japan. Water samples (n = 168) were collected every month for 1 year (March 2016 to February 2017). Pesticides (cyanazine, simetryn, fenarimol, isoprothiolane, and diazinon) were extracted by Sep-Pack C18 cartridges and analyzed using a reversed-phase HPLC-UV system. The pesticides were also determined in non-target organisms Red algae (Audouinella sp.) and diatoms (Cocconeis placentula) from the river. Based on the residual concentrations, an ecotoxicological risk assessment was conducted using the risk quotient (RQ) index. The human health carcinogenic and non-carcinogenic risk assessments were evaluated using hazard quotients (HQ). Results showed that cyanazine was the most commonly detected (64%, followed by simetryn (58%), and diazinon (57%) in all the sample sites (n =12). Except for isoprothiolane, the pesticides were highest in spring followed by summer, autumn and winter. Based on extreme values (ex), non-acceptable ecotoxicological risk was obtained for diazinon (RQ

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Keywords: Algae; diatom; monitoring; pesticides; risk; water

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