Outdoor air pollution is a major contributor to the burden of disease worldwide. Most of the
global population resides in places where air pollution levels, because of emissions from …

As new scientific evidence on health effects of air pollution is generated, air quality
guidelines need to be periodically updated. The objective of this review is to support the …

Background Exposure to ambient air pollution increases morbidity and mortality, and is a
leading contributor to global disease burden. We explored spatial and temporal trends in …

Exposure to ambient fine particulate matter (PM2. 5) is a major global health concern.
Quantitative estimates of attributable mortality are based on disease-specific hazard ratio …

Abstract Ground-level ozone (O 3), fine particles (PM 2.5), and nitrogen dioxide (NO 2) are
the most harmful urban air pollutants regarding human health effects. Here, we aimed at …

Background Previous attempts to characterise the burden of chronic respiratory diseases
have focused only on specific disease conditions, such as chronic obstructive pulmonary …

Background Air pollution is an important public health concern in China, with high levels of
exposure to both ambient and household air pollution. To inform action at provincial levels in …

Background Studies have shown that long-term exposure to air pollution increases mortality.
However, evidence is limited for air-pollution levels below the most recent National Ambient …

Ozone (O 3) is an important trace and greenhouse gas in the atmosphere, posing a threat to
the ecological environment and human health at the ground level. Large-scale and long …

In all cities and urban areas, the risk faced by people and assets from hazards associated
with climate change has increased (high confidence1). Urban areas are now home to 4.2 …