Exploring the discharge characteristics of personal care behaviors for high precision estimation of microplastic emission.
Exploring the discharge characteristics of personal care behaviors for high precision estimation of microplastic emission.
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DOI：
10.1016/j.jenvman.2022.114917
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发表时间：
2022-03
影响因子：
8.7
通讯作者：
Hang Qi;S. Zeng;Yiming Wang;Xin Dong
中科院分区：
文献类型：
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作者：
Hang Qi;S. Zeng;Yiming Wang;Xin Dong
个人护理和化妆品（PCCP）中的微塑料（MP）由于体积小且成分复杂，对水生环境构成威胁。虽然个人护理行为（PCBs）的习惯因个体而异，影响MP排放，但定量研究不足以支持高精度的排放估计和有针对性的管理决策。基于多氯联苯（PCBs）的问卷调查和相应PCCPs利用的实验室实验，提出了一种自下而上的微观模拟方法，结合多项logit模型和分类排放系数，对多氯联苯（MPs）的排放进行量化，并确定了各属性对排放的影响。结果表明，中国每年多氯联苯来源的微粒排放量为2931.8万亿粒，其中刷牙、洗脸和洗澡行为分别占29%、36%和35%。居民年人均排放颗粒物218万粒，95%可信区间为58 ~ 434万粒。性别、年龄和居住地区对多氯联苯衍生微污染物排放影响较大。生活区域的影响与当地的温度和湿度有显著的相关性。基于多氯联苯多金属化合物排放特性的估算为人们日常生活中多金属化合物的排放提供了高精度的方法，有助于进一步了解多金属化合物的来源和制定环境控制策略。
Microplastics (MPs) from personal care and cosmetic products (PCCPs) pose a threat to aquatic environment due to the small size and the complexity of composition. Although the habits of personal care behaviors (PCBs) vary from individuals affecting MPs emissions, quantitative research is not sufficient to support high-precision emission estimates and targeted management decisions. Based on a questionnaire survey about PCBs and laboratory experiments on corresponding PCCPs utilization, this study proposed a bottom-up micro-simulation method to quantify MPs emissions combining multinomial logit model and categorized emission coefficients, and identified the impact of individual attributes on the emissions. The results show that the annual PCBs-derived MPs emissions amounted to 2931.8 trillion particles in China, of which teeth brushing, face washing, and bathing behavior accounted for 29%, 36% and 35%, respectively. The residents discharged an average of 2.18 million particles per capita per year with 95% confidence interval of 0.58–4.34 million particles. Gender, age and living region had greater impacts on PCBs-derived MPs emissions. The effect of living region was significantly related to local temperature and humidity. The estimation based on the MPs discharge characteristics of PCBs provides high-precision method regarding the MPs emission from people's daily life and contributes to further understanding the source of MPs and initiating environmental control strategies.