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- Title
植烟土壤和烟叶中PAEs 的暴露特征及健康风险.
- Authors
马军; 滕应; 曹雪莹; 谭长银; 王勇; 吴兰艳; 秦航道
- Abstract
This paper reports on an assessment of the health risk of PAEs (phthalic acid esters) in the tobacco planting and field management of eastern Guizhou, which involved the analyzing of the exposure characteristics of PAEs in soil and tobacco-leaf samples, and the evaluating of the health risk of tobacco farmers exposed to PAEs. Consequently, the assessment revealed that DMP, DEP, DBP, BBP, DEHP, DNOP of PAEs, the average concentrations of in soil were 0.07, 0.05, 0.69, 0.03, 5.59, 0.02 mg/kg, respectively, and in tobacco leaf were 0.05, 0.04, 0.54, 0.05, 0.98, 0.03 mg/kg, respectively; BBP and DEHP being carcinogenic, in soil-tobacco system their highest concentrations were respectively 0.13 and 14.31 mg/kg, and non-carcinogenic intake of PAEs in soil via ingest, dermal and inhaling ways were respectively 1.28~25.89, 0.51~10.33 and 1.88× 10-4~3.81×10-3 ng/(kg·d), while PAEs in tobacco leaf were 0.89~6.22, 0.35~2.48 and 1.31×10-4~9.15×10-4 ng/(kg·d), respectively. However, as to DEHP and BBP in tobacco leaf, the average amounts of intake by the tobacco farmers were respectively 4.28 and 0.03 ng/(kg·d), and as to DEHP and BBP in soil, being 0.75 and 0.04 ng/(kg·d), respectively. In general, the exposure of PAEs in terms of amount was in the descending order as via ingesting way>via dermal way>via inhaling way. In the soil-tobacco system, the average daily non-carcinogenic intake of total PAEs (ΣPAEs) was 18.16 ng/(kg·d), and the average daily carcinogenic intakes of BBP and DEHP were 0.06 and 5.04 ng/(kg·d), respectively. To the tobacco farmers, THI (the average total hazard quotients) of PAEs ranged from 3.3×10-4 to 2.87×10-3, and TCRI (the total carcinogenic risk index) ranged from 2.28×10-8 to 3.56×10-7, the average being 1.53×10-7. Finally, the assessment indicated that though the hazard quotient and carcinogenic risk index of PAEs to the local tobacco farmers were lower than the control threshold value set by USEPA; however, TCRI derived from the assessment was close to that control threshold value, so the attention should also be taken anyway.
- Subjects
GUIZHOU Sheng (China); PHTHALATE esters; TOBACCO farmers; SOIL sampling; TOBACCO; HEALTH risk assessment; TOBACCO smoke; SOILS
- Publication
Environmental Science & Technology (10036504), 2022, Vol 45, Issue 7, p228
- ISSN
1003-6504
- Publication type
Article
- DOI
10.19672/j.cnki.1003-6504.0292.22.338