Health risks and sources of PM_2.5-bound heavy metals in Southwest China: evidence from a 9-year monitoring program.

ABSTRACT: Numerous studies have demonstrated that PM_2.5-bound heavy metals pose non-negligible inhalation carcinogenic risks to the population. As one of the largest megacities in southwest China, Chengdu's industrial activity combined with its geographic features may present ongoing health challenges. By monitoring heavy metals and inorganic ion in atmospheric PM_2.5 in Chengdu City for nine years, the inhalation health risks of 12 metal elements were analyzed by applying a year-weighted health risk assessment model. Afterwards, the sources of heavy metals and ions were resolved by using a positive matrix factorization (PMF) model. Further, 34 socio-economic development indicators in Chengdu were collected and analyzed by Spearman correlation and partial correlation to support

SUBMITTER: Huang W 

PROVIDER: S-EPMC12604335 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature