Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

  1. Home
  3. Research Domains
  5. Indigenous Studies
  7. Pacific Peoples Environmental Knowledges
  9. Pacific Peoples Fisheries And Customary Fisheries
  11. Sources And Temporal Trends Of Chlorinated Paraffins In Pm2.5 In A Megacity In Central China

Sources and Temporal Trends of Chlorinated Paraffins in PM2.5 in a Megacity in Central China

Nan Jiang1, Jiasen Guo1, Zhangpeng Guo1

  • 1School of Ecology and Environment, Zhengzhou University, Zhengzhou 450001, China.

Environmental Pollution (Barking, Essex : 1987)
|June 13, 2025

Related Experiment Videos

Composition and Distribution Analysis of Bioaerosols Under Different Environmental Conditions
05:45

Composition and Distribution Analysis of Bioaerosols Under Different Environmental Conditions

Published on: January 7, 2019

10.6K
Investigating Long-Distance Transport of Perfluoroalkyl Acids in Wheat via a Split-Root Exposure Technique
07:06

Investigating Long-Distance Transport of Perfluoroalkyl Acids in Wheat via a Split-Root Exposure Technique

Published on: September 28, 2022

1.6K
Measuring Carbon-based Contaminant Mineralization Using Combined CO2 Flux and Radiocarbon Analyses
11:19

Measuring Carbon-based Contaminant Mineralization Using Combined CO2 Flux and Radiocarbon Analyses

Published on: October 21, 2016

11.9K

View abstract on PubMed

Summary
This summary is machine-generated.

Chlorinated paraffins (CPs) in PM2.5 were monitored in a megacity. SCCPs decreased after regulations, but MCCPs showed no trend, indicating ongoing risks, especially for children.

Area of Science:

  • Environmental Chemistry
  • Atmospheric Science
  • Toxicology

Background:

  • Widespread use of chlorinated paraffins (CPs) presents ecological and health risks.
  • Limited studies exist on regional sources and long-term trends of CPs.
  • Continuous monitoring of CPs in PM2.5 is crucial for understanding exposure.

Purpose of the Study:

  • To investigate sources, seasonal and annual variations of short-chain CPs (SCCPs) and medium-chain CPs (MCCPs) in PM2.5.
  • To assess potential health risks associated with CP exposure in a megacity.
  • To provide insights for developing effective CP reduction strategies.

Main Methods:

  • Continuous monitoring of SCCPs and MCCPs concentrations in PM2.5.
  • Analysis of dominant congeners and seasonal variations.
Keywords:
CPsPM(2.5)emission sourceshealth risks

Related Experiment Videos

Composition and Distribution Analysis of Bioaerosols Under Different Environmental Conditions
05:45

Composition and Distribution Analysis of Bioaerosols Under Different Environmental Conditions

Published on: January 7, 2019

10.6K
Investigating Long-Distance Transport of Perfluoroalkyl Acids in Wheat via a Split-Root Exposure Technique
07:06

Investigating Long-Distance Transport of Perfluoroalkyl Acids in Wheat via a Split-Root Exposure Technique

Published on: September 28, 2022

1.6K
Measuring Carbon-based Contaminant Mineralization Using Combined CO2 Flux and Radiocarbon Analyses
11:19

Measuring Carbon-based Contaminant Mineralization Using Combined CO2 Flux and Radiocarbon Analyses

Published on: October 21, 2016

11.9K
  • Back-trajectory analysis to identify regional sources and meteorological influences.

    • Main Results:

    • SCCP concentrations (22.6 ± 15 ng m⁻³) were higher than MCCPs (13.2 ± 10.3 ng m⁻³).
    • CP concentrations peaked in winter and were lowest in summer.
    • SCCP levels decreased post-2017 Stockholm Convention restrictions; MCCP levels remained unchanged.
    • Regional airflows from northwest and northeast, linked to production facilities, were primary sources.
    • Children face a fourfold higher CP exposure risk compared to the elderly.

    Conclusions:

    • Atmospheric CPs are influenced by localized industrial sources and meteorological conditions.
    • While not an immediate threat, long-term CP exposure poses risks, particularly to children.
    • The study provides critical data for informing CP reduction policies.
    temporal trends