The Analysis of Exposure and Influencing Factors of Pyrethroid Pesticides in Rural Women during Different Pregnancy Stages in Xuanwei，Yunnan Province

Siwei YANG; Yan LI; Xia XIAO; Xiaoxiao SONG; Lin SUN; Rui MA

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Siwei YANG, Yan LI, Xia XIAO, Xiaoxiao SONG, Lin SUN, Rui MA. The Analysis of Exposure and Influencing Factors of Pyrethroid Pesticides in Rural Women during Different Pregnancy Stages in Xuanwei，Yunnan Province[J]. Journal of Kunming Medical University.

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The Analysis of Exposure and Influencing Factors of Pyrethroid Pesticides in Rural Women during Different Pregnancy Stages in Xuanwei，Yunnan Province

1.
Dept. of Academic Affairs，Kunming Medical University
2.
School of Public Health. of Kunming Medical University，Kunming Yunnan 650500
3.
School of Public Health and Health Management，Qujing Medical College，Qujing Yunnan 655000，China

Received Date: 2024-07-22
Available Online: 2024-11-09

Abstract

Abstract

Objective The purpose of the study is to understand the exposure of rural women to pyrethroid pesticides during each pregnancy stage. Methods From December 2014 to December 2016, 216 pregnant and postpartum women with the average age between 24.81±5.256 years old were recruited from 2 townships in Xuanwei rural area. Results In this study, the majority of pregnant women were still engaged in farming during pregnancy and self-reported no active exposure to pesticides during pregnancy. The self-reporting exposure rates among the three trimesters were no more than 1.4%. However, Laboratory testing found that the exposure rates of pyrethroid pesticides among the three trimester of pregnancy were exceed 90.0%, and the total of 67.1% of women exposed to pyrethroid pesticides in every trimester of gestation. Women exposure rates of pyrethroid by laboratory detection were significantly higher than those by questionnaire. In the first, the second and the third trimester, the medians of urine pyrethroid metabolites 3-PBA were 3.61 ng/ml、3.60 ng/ml、3.57 ng/ml, respectively, and the medians of urine cis/trans-DCCA, pyrethroid metabolites, distributed 49.10 ng/ml、45.45 ng/ml、47.45 ng/ml, respectively. The pregnancy exposure to pyrethroid pesticides was in the middle level of domestic research, but exceeded the level of most foreign reports. The result of women who exposed to pyrethroid pesticides in each trimester of gestation by Repeated Measures Define Factor（s） showed that address, education and family income had interaction with the three trimester pyrethroid metabolites amount （F _{gestation×address}=3.183, F _{gestation×education}=2.731, P<0.05）, and the amount by laboratory test in the first trimester and the second trimester were higher than that in the third trimester（LSD, P < 0.05）. Chi-square test indicated that there were no significant differences in the amounts of pyrethroid exposure among women age groups, between the minority and the majority, among different education levels, between on work and stopping work, between the two towns, across different family income and among the four seasons. Conclusion Rural pregnancy women are with low awareness of pesticide in Xuan wei. The vast majority of pregnancy women are exposed to pyrethroid pesticides in varying degrees and in the middle level of domestic research. Pyrethroid exposure in the third trimester is likely less serious than the other trimesters. The address, education and family income affect the pyrethroid exposure level. Therefore, it is necessary to strengthen health education and improve the health consciousness of pregnant women to reduce pyrethroids pesticides exposure as much as possible in rural areas.
- Pregnancy,
- Pyrethroid pesticides,
- Exposure,
- Rural area

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References(12)

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