Tracing organic pollutants in particulate Matter: Source identification and implications for air quality and public health

IF 8.1 2区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Chemosphere Pub Date : 2025-08-15 DOI:10.1016/j.chemosphere.2025.144643

Luis Fhernando Mendonça da Silva , Adriana Gioda , Carlos German Massone , Madson Moreira Nascimento , Lilian Lefol Nani Guarieiro , Jailson Bittencourt de Andrade , Gisele Olimpio da Rocha , Marllon Wellington Faria Campos , Rodrigo Stellet Ferreira , Maria Cristina Canela , Renato da Silva Carreira

{"title":"Tracing organic pollutants in particulate Matter: Source identification and implications for air quality and public health","authors":"Luis Fhernando Mendonça da Silva , Adriana Gioda , Carlos German Massone , Madson Moreira Nascimento , Lilian Lefol Nani Guarieiro , Jailson Bittencourt de Andrade , Gisele Olimpio da Rocha , Marllon Wellington Faria Campos , Rodrigo Stellet Ferreira , Maria Cristina Canela , Renato da Silva Carreira","doi":"10.1016/j.chemosphere.2025.144643","DOIUrl":null,"url":null,"abstract":"<div><div>Air pollution significantly impacts public health and environmental quality, making it crucial to identify its sources and chemical composition. This study analyzes organic compounds in atmospheric particulate matter, including polycyclic aromatic hydrocarbons (PAHs), nitro-PAHs, oxy-PAHs, aliphatic hydrocarbons, and anhydrosugars. Samples were collected from three locations with varying types and levels of human activity in Rio de Janeiro, Brazil: Gávea (urban), PARNASO (environmental protection area), and Campos dos Goytacazes (metropolitan area linked to sugarcane burning). While PM<sub>2.5</sub> concentrations fell within Brazilian air quality standards, 63 % of samples exceeded World Health Organization guidelines. PAH concentrations were highest in PARNASO (385 ± 639 pg m<sup>−3</sup>), followed by Campos dos Goytacazes (236 ± 320 pg m<sup>−3</sup>) and Gávea (184 ± 291 pg m<sup>−3</sup>). High molecular weight PAHs were prevalent and associated with gasoline combustion. Retene, a 5-ring PAH, indicated sugarcane burning, whereas levoglucosan was a reliable marker for biomass combustion. Nitro-PAHs and oxy-PAHs in lower concentrations provided additional insights into combustion sources. The findings underline the impact of human activities on air quality and highlight the need for continuous monitoring of PAHs and their derivatives, particularly in vulnerable areas like PARNASO.</div></div>","PeriodicalId":276,"journal":{"name":"Chemosphere","volume":"386 ","pages":"Article 144643"},"PeriodicalIF":8.1000,"publicationDate":"2025-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Chemosphere","FirstCategoryId":"93","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0045653525005909","RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENVIRONMENTAL SCIENCES","Score":null,"Total":0}

引用次数: 0

Abstract

Air pollution significantly impacts public health and environmental quality, making it crucial to identify its sources and chemical composition. This study analyzes organic compounds in atmospheric particulate matter, including polycyclic aromatic hydrocarbons (PAHs), nitro-PAHs, oxy-PAHs, aliphatic hydrocarbons, and anhydrosugars. Samples were collected from three locations with varying types and levels of human activity in Rio de Janeiro, Brazil: Gávea (urban), PARNASO (environmental protection area), and Campos dos Goytacazes (metropolitan area linked to sugarcane burning). While PM_2.5 concentrations fell within Brazilian air quality standards, 63 % of samples exceeded World Health Organization guidelines. PAH concentrations were highest in PARNASO (385 ± 639 pg m⁻³), followed by Campos dos Goytacazes (236 ± 320 pg m⁻³) and Gávea (184 ± 291 pg m⁻³). High molecular weight PAHs were prevalent and associated with gasoline combustion. Retene, a 5-ring PAH, indicated sugarcane burning, whereas levoglucosan was a reliable marker for biomass combustion. Nitro-PAHs and oxy-PAHs in lower concentrations provided additional insights into combustion sources. The findings underline the impact of human activities on air quality and highlight the need for continuous monitoring of PAHs and their derivatives, particularly in vulnerable areas like PARNASO.

Abstract Image

查看原文本刊更多论文

追踪微粒物质中的有机污染物：来源识别及其对空气质量和公众健康的影响

空气污染严重影响公众健康和环境质量，因此确定其来源和化学成分至关重要。本研究分析了大气颗粒物中的有机化合物，包括多环芳烃（PAHs）、硝基多环芳烃、氧基多环芳烃、脂肪烃和无水糖。样本收集自巴西里约热内卢里约热内卢三个不同类型和水平的人类活动地点：Gávea（城市）、PARNASO（环境保护区）和Campos dos Goytacazes（与甘蔗燃烧有关的大都市地区）。虽然PM2.5浓度低于巴西空气质量标准，但63%的样本超过了世界卫生组织的指导方针。PAH浓度最高的是PARNASO(385±639 pg m−3)，其次是Campos dos Goytacazes（236±320 pg m−3）和Gávea（184±291 pg m−3）。高分子量多环芳烃普遍存在，并与汽油燃烧有关。5环多环芳烃（Retene）表明甘蔗燃烧，而左旋葡聚糖是生物质燃烧的可靠标志。低浓度的硝基多环芳烃和氧基多环芳烃提供了对燃烧源的进一步了解。研究结果强调了人类活动对空气质量的影响，并强调了持续监测多环芳烃及其衍生物的必要性，特别是在PARNASO这样的脆弱地区。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Chemosphere 环境科学-环境科学

CiteScore

15.80

自引率

8.00%

发文量

4975

审稿时长

3.4 months

期刊介绍： Chemosphere, being an international multidisciplinary journal, is dedicated to publishing original communications and review articles on chemicals in the environment. The scope covers a wide range of topics, including the identification, quantification, behavior, fate, toxicology, treatment, and remediation of chemicals in the bio-, hydro-, litho-, and atmosphere, ensuring the broad dissemination of research in this field.