Collaborative Research: CAS: Environmentally Relevant Photoproducts of Organic UV Filters in Commercial Sunscreens

合作研究:CAS:商业防晒霜中有机紫外线过滤剂的环境相关光产品

基本信息

项目摘要

With support from the Environmental Chemical Sciences Program in the Division of Chemistry, Michael Gonsior, Carys Mitchelmore, Andrew Heyes and their team at the University of Maryland Center for Environmental Science (UMCES) and Leanne Powers and her team at the State University of New York College of Environmental Science and Forestry will study the photo-degradation products of commercial sunscreens and other outdoor products that contain ultraviolet (UV) filters. These compounds protect both people and materials from sun damage, but their environmental fate and risk are largely unknown. This project will evaluate changes in UV filters when exposed to sunlight, because these photochemical reactions are major pathways to degrade these chemicals, which in turn influences their environmental persistence, bioaccumulation, and toxicity to aquatic organisms. Their reaction with disinfectants used in water treatment (potable water and wastewater) will also be evaluated. A graduate student will be supported at UMCES, and undergraduate students will be recruited through the Central New York Louis Stokes Alliance for Minority Participation and the research for undergraduate (REU) program at UMCES. A summertime workshop for teachers is planned in coordination with the Calvert County Board of Education Science coordinators and teachers; accessible web content will also be produced through student educational videos.This project aims to determine the photodegradation kinetics as well as the photoproducts of the most common organic UV filters. A custom-designed photodegradation system will be implemented to allow for highly reproducible experiments, which avoids previous shortcomings. These aromatic UV filters are also suspected to form disinfection by-products (DBPs) upon treatment with chlorine. The photoproducts and DBPs produced in seawater and freshwater settings will be structurally elucidated using modern mass spectrometry approaches. Results from this project are expected to help scientists to estimate the environmental lifetimes of organic UV filters, their suspected DBP formation and photodegradation products, as well as allow for an evaluation of the role of photochemistry and chlorine disinfection in decreasing or increasing the environmental risk of these compounds to aquatic organisms.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.
在化学系环境化学科学项目的支持下,马里兰州大学环境科学中心(UMCES)的Michael Gonsior、Carys Mitchelmore、Andrew Heyes和他们的团队,以及纽约州立大学环境科学和林业学院的Leanne Power和她的团队将研究商业防晒霜和其他含有紫外线(UV)过滤器的户外产品的光降解产品。这些化合物可以保护人类和物质免受阳光的损害,但它们在环境中的命运和风险在很大程度上是未知的。该项目将评估紫外线滤光器在阳光下的变化,因为这些光化学反应是降解这些化学物质的主要途径,而这些化学物质反过来又影响它们的环境持久性、生物积累和对水生生物的毒性。还将评估它们与水处理(饮用水和废水)中使用的消毒剂的反应。UMCES将支持一名研究生,本科生将通过中央纽约路易斯·斯托克斯少数族裔参与联盟和UMCES的本科生研究计划(REU)招募。与卡尔弗特县教育局、科学协调员和教师协调,计划为教师举办夏季讲习班;还将通过学生教育视频制作可访问的网络内容。该项目旨在确定光降解动力学以及最常见的有机紫外线滤光剂的光产品。将实施定制设计的光降解系统,以允许高度重复性的实验,从而避免了以前的缺点。这些芳香族紫外线过滤器也被怀疑在用氯处理时会形成消毒副产品(DBP)。将使用现代质谱学方法对海水和淡水环境中产生的光产品和二氯苯酚进行结构解析。该项目的结果有望帮助科学家估计有机紫外线滤光器的环境寿命、其可疑的DBP形成和光降解产物,并允许评估光化学和氯消毒在减少或增加这些化合物对水生生物的环境风险方面的作用。该奖项反映了NSF的法定使命,并通过使用基金会的智力优势和更广泛的影响审查标准进行评估,被认为值得支持。

项目成果

期刊论文数量(0)
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Michael Gonsior其他文献

Comprehensive assessment of dissolved organic matter processing in the Amazon River and its major tributaries revealed by positive and negative electrospray mass spectrometry and NMR spectroscopy
通过正负电喷雾质谱和核磁共振波谱揭示的亚马逊河及其主要支流中溶解性有机物处理的综合评估
  • DOI:
    10.1016/j.scitotenv.2022.159620
  • 发表时间:
    2023-01-20
  • 期刊:
  • 影响因子:
    8.000
  • 作者:
    Siyu Li;Mourad Harir;Philippe Schmitt-Kopplin;Michael Gonsior;Alex Enrich-Prast;David Bastviken;Juliana Valle;Fausto Machado-Silva;Norbert Hertkorn
  • 通讯作者:
    Norbert Hertkorn
Increased microbial and substrate complexity result in higher molecular diversity of the dissolved organic matter pool
微生物和底物复杂性的增加导致溶解有机物质池的分子多样性更高
  • DOI:
    10.1002/lno.12206
  • 发表时间:
    2022-08
  • 期刊:
  • 影响因子:
    4.5
  • 作者:
    Qi Chen;Christian Lønborg;Feng Chen;Michael Gonsior;Yunyun Li;Kai Tang;Chen He;Jiaxin Chen;Yu Wang;Quan Shi;Nianzhi Jiao;Qiang Zheng
  • 通讯作者:
    Qiang Zheng
Evaluating the photochemical reactivity of disinfection byproducts formed during seawater desalination processes
评估海水淡化过程中形成的消毒副产物的光化学反应性
  • DOI:
    10.1016/j.scitotenv.2023.169292
  • 发表时间:
    2024-02-20
  • 期刊:
  • 影响因子:
    8.000
  • 作者:
    Leanne C. Powers;Philippe Schmitt-Kopplin;Michael Gonsior
  • 通讯作者:
    Michael Gonsior

Michael Gonsior的其他文献

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{{ truncateString('Michael Gonsior', 18)}}的其他基金

The fate of lysis products of picocyanobacteria contributes to marine humic-like chromophoric dissolved organic matter
微微蓝细菌裂解产物的命运有助于海洋腐殖质类发色溶解有机物
  • 批准号:
    1829888
  • 财政年份:
    2019
  • 资助金额:
    $ 59.99万
  • 项目类别:
    Standard Grant
Collaborative Research: Fundamental Understanding of the Environmental Fate of Disinfection By-Products Arising from Desalination Plants
合作研究:对海水淡化厂产生的消毒副产品的环境归宿的基本了解
  • 批准号:
    1708766
  • 财政年份:
    2017
  • 资助金额:
    $ 59.99万
  • 项目类别:
    Standard Grant
Collaborative Research: Ultrahigh-Resolution Analyses of Organic Constituents in Shale Well Fluids and their Environmental Persistence
合作研究:页岩井流体中有机成分及其环境持久性的超高分辨率分析
  • 批准号:
    1604475
  • 财政年份:
    2016
  • 资助金额:
    $ 59.99万
  • 项目类别:
    Standard Grant
Collaborative Proposal: Phlorotannins - An Important Source of Marine Chromophoric Dissolved Organic Matter?
合作提案:草单宁 - 海洋发色溶解有机物的重要来源?
  • 批准号:
    1536888
  • 财政年份:
    2015
  • 资助金额:
    $ 59.99万
  • 项目类别:
    Standard Grant
Workshop: Natural Organic Matter and its Impact on Drinking Water
研讨会:天然有机物及其对饮用水的影响
  • 批准号:
    1521562
  • 财政年份:
    2015
  • 资助金额:
    $ 59.99万
  • 项目类别:
    Standard Grant

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