The ground, groundwater, rainwater and even the ambient air constitute efficient heat sources/sinks.
Cooling and dehumidifying fresh ventilation air constitutes 20 40% of the total energy load for air conditioning in hot and humid regions.
These results support that residing in the vicinity of IPPC-registered industries that release pollutants to the air constitutes a risk factor for pleural cancer.
Changes in indoor environments warrant special attention because indoor air constitutes a dominant exposure route.
We hypothesize that the excess cancer risk posed to inhabitants of the Cold Lake oil sands extraction region that are associated with potential exposures to carcinogenic PAHs in soil and air, constitutes an appreciable increase over background.
The 130 female volunteers exposed to each air mixture constituted the largest group evaluated in a study of this kind, and the researchers determined the numbers were of sufficient power to produce significant findings.
The oxide layer that forms on metals when they are exposed to air also constitutes a protective barrier.
The NGO Africa Partnership Canada spoils its most recent and otherwise excellent report by arguing that Zimbabwe's Joint Operations Command – made up of chiefs of police, prisons, armed forces and air force – constitutes a "rebel movement seeking to destabilise the government".
Determination of the static characteristics of air bearings constitutes the necessary first phase in a design problem, which determines general feasibility.
Air pollution constitutes the major threat to human health, whereas their adverse impacts and underlying mechanisms of different particular matters are not clearly defined.
