A Comprehensive Particulate Matter Monitoring System and Dosimetry-Based Ambient Particulate Matter Standards

National Ambient Air Quality Standards for Particulate Matter ; Final Rule

Bioassay of extracts of ambient particulate matter.

Organic extracts from airborne particles collected at various sites in Scandinavia have been tested for mutagenicity in the Ames Salmonella/microsome assay. Extracts from particles in the respirable size fraction (diameter less than 3 microns) were mutagenic with and without metabolic activation. The mutagenic activity varied from day to day, mainly due to variations in meteorological parameter...

Inhaled Ambient Particulate Matter and Lung Health Burden

Increased ambient particulate matter (PM) has been associated with various cardio-respiratory disorders and emergency room visits due to short-term and long-term exposures. However, most of the efforts correlating PM exposure with human health hazards have primarily focused on cardiovascular impairments, although the lung acts as the primary port of entry, and is therefore also the primary targ...

Spatial association between ambient fine particulate matter and incident hypertension.

BACKGROUND Laboratory studies suggest that exposure to fine particulate matter (≤2.5 μm in diameter) (PM2.5) can trigger a combination of pathophysiological responses that may induce the development of hypertension. However, epidemiological evidence relating PM2.5 and hypertension is sparse. We thus conducted a population-based cohort study to determine whether exposure to ambient PM2.5 is asso...

Effect of ambient particulate matter exposure on hemostasis.

Epidemiological studies have linked levels of particulate matter (PM) in ambient air to cardiovascular mortality and hospitalizations for myocardial infarction (MI) and stroke. Thrombus formation plays a primary role in potentiating acute cardiovascular events, and this study was undertaken to determine whether pulmonary exposure to PM alters hemostasis. PM was collected from the Chapel Hill, N...