山东农业大学学报（自然科学版）2023，Vol.54Issue(6)：844-851,8.DOI:10.3969/j.issn.1000-2324.2023.06.007
主产区大棚蔬菜中全氟烷基化合物污染状况分析及安全性评价
Pollution Status for Perfluoroalkyl Substances in Greenhouse Vegetables of the Main Production Area
摘要
Abstract
The facility vegetable industry,represented primarily by plastic greenhouses,has developed rapidly in recent years.However,the contamination and risk of perfluoroalkyl compounds(PFASs)in greenhouse vegetables have not been objectively assessed.To address this gap,we analyzed the PFASS content level of vegetable samples collected from a main greenhouse vegetable production area in Shandong province and carried out a preliminary safety evaluation of the pollution.315 batches of overwintering greenhouse vegetables were collected and analyzed for 20 different types of perfluoroalkyl substances using liquid chromatography-mass spectrometry technology.The dietary exposure and safety risks to the population were estimated based on the dietary models and tolerable intake.The results showed that the total PFASs detection rate in all samples was 97.1％,with a total content ranging from 0.89 to 28.3 μg·kg-1,the shorter alkyl chain perfluorocarboxylic acids were the main pollutants.The pollution level of leafy vegetables was higher than that of solanaceous and leguminous vegetables,and the pollution level of crops with longer growth cycles was relatively high.PFASs dietary exposure level of greenhouse vegetables to urban and rural populations were evaluated.The safety level of perfluorooctane sulfonic acid(PFOS)in greenhouse vegetables in the main production area was high,and the maximum exposure level of PFOA and PFBA showed safety risk to all population.Our study provides an important basis for assessing the pollution status and risk of perfluoroalkyl compounds in the facility vegetable industry and helps to promote the sustainable development of greenhouse vegetable production and protect public health.关键词
大棚蔬菜/全氟烷基化合物/环境污染/安全性评价Key words
Greenhouse vegetable/perfluoroalkyl substances/environment pollution/safety assessment分类
农业科技引用本文复制引用
乔鲁芹,周一冉,王明辉,高艳艳,张雪..主产区大棚蔬菜中全氟烷基化合物污染状况分析及安全性评价[J].山东农业大学学报（自然科学版）,2023,54(6):844-851,8.基金项目
国家"十三五"重点研发计划项目(2018YFC1602300) （2018YFC1602300）
山东省重点研发计划项目(2017GSF220017) （2017GSF220017）
