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198243

Effect of Water pH and Direct Exposure to Sunlight on Chemical Stability of Fungicide Chlorothalonil

Article

Last updated: 04 Jan 2025

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Tags

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Abstract

This project target aim to investigate the hydrolysis of fungicide chlorothalonil at different pH solutions at (pH4, pH7, and pH9), as well as its stability under exposure to different temperature degrees and direct exposure to sunlight, and to estimate the photoproducts degradation of chlorothalonil using GC/MS. The data showed that chlorothalonil dissipation from different pH solutions increased more rapidly with increasing both pH value and temperature when compared to acidic and neutral solutions, and that tested pesticides were hydrolyzed more rapidly in alkaline media (PH9) than the other tested pH values at all tested temperatures. The percentage of pesticides that decompose steadily increases and is positively connected with exposure times, according to the data. The results also demonstrated that after 336 hours of exposure to direct sunlight, no detectable level of the pesticides tested was found. The compound (4-hydroxy-2,5,6-trichloroisophthalonitrile) was identified as a major metabolites in environmental samples after photo-degradation products were investigated using GC/MS following exposure to direct sunlight.

DOI

10.21608/jppp.2021.198243

Keywords

pesticide, Chlorothalonil, Environmental factors, Temperature degrees, Direct sunlight, pH solutions, GC/MS

Authors

First Name

A.

Last Name

Seloma

MiddleName

S. O.

Affiliation

Pesticides Analysis Res. Dept., Central Agric. Pesticides Lab., Agric. Res. Center, Dokki, Giza, Egypt.

Email

aymansameih@yahoo.com

City

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Orcid

-

First Name

A.

Last Name

Shalaby

MiddleName

A.

Affiliation

Plant Prot. Dept., Fac. of Agric., Zigzag, Univ., Egypt.

Email

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City

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Orcid

-

Volume

12

Article Issue

8

Related Issue

27990

Issue Date

2021-08-01

Receive Date

2021-10-05

Publish Date

2021-08-01

Page Start

543

Page End

548

Print ISSN

2090-3677

Online ISSN

2090-3758

Link

https://jppp.journals.ekb.eg/article_198243.html

Detail API

https://jppp.journals.ekb.eg/service?article_code=198243

Order

8

Type

Original Article

Type Code

888

Publication Type

Journal

Publication Title

Journal of Plant Protection and Pathology

Publication Link

https://jppp.journals.ekb.eg/

MainTitle

Effect of Water pH and Direct Exposure to Sunlight on Chemical Stability of Fungicide Chlorothalonil

Details

Type

Article

Created At

22 Jan 2023