Air Quality and Health Impacts

Airborne particulate matter — microscopic particles suspended in the atmosphere from combustion, industry, and natural sources — enters the lungs and bloodstream, where it drives inflammation, oxidative stress, and cardiovascular dysfunction that together account for millions of premature deaths each year. Epidemiologists and toxicologists work to quantify how much exposure is too much, tracing dose-response relationships across diverse populations and disentangling the effects of particle size, chemical composition, and co-pollutants. A central open question is how short-term spikes in fine particulate concentration interact with long-term cumulative exposure to shape lifetime disease risk, particularly for vulnerable groups such as the elderly and those with pre-existing heart conditions. Accurate exposure assessment remains a persistent challenge, as personal exposure often diverges sharply from what fixed monitoring stations record, leaving researchers to develop satellite-based and modeling tools that can resolve pollution gradients at the neighborhood scale.

Works

156,929

Total citations

3,350,145

Keywords

Air PollutionParticulate MatterHealth EffectsGlobal Burden of DiseaseCardiovascular DiseaseFine Particulate Air Pollution