Particulate matter is an important component of the air pollution mixture that has been linked to various adverse health outcomes as well as having general environmental effects. It is not yet clear which causative agents and underlying mechanisms are responsible for these adverse health effects. However, it is likely that the source of the particles, a factor which influences their characteris...

large urban areas are facing growing problems of noise pollutions. geospatial information systems (gis) can conveniently be adapted to gather, analyze and present noise information. gis can also be extended to answer to user specific problems through deterministic and statistics models. the objectives of this research were to measure urban traffic noise levels, analyze temporal and spatial dyna...

Coordinated traffic lights that implement green waves along major arterial roads are an increasingly used traffic management strategy for reducing travel times in urban context. The potential positive effect of this measure on emissions is often called upon as an additional support for its introduction. Although a smoother traffic flow will generally lead to lower air pollutant emissions, it wi...

Particulate pollution is a term that covers a broad spectrum of specific pollutant types, including smoke and aerosols, which permeate the atmosphere. The effects of such pollutants on human health have prompted a great deal of research effort in recent years, with the establishment of PM10 (particulate matter having an aerodynamic diameter of <10 μm) as the definition for the health-damaging f...

the staff working at beauty centers are exposed to various chemicalproducts used daily in their working environment. both hair dressers and nail techniciansare exposed to chemicals that are known to have an influence on the respiratory system.in order to evaluate such influence, this cross-sectional observational study wasconducted on a randomly selected 14 beauty centers in dammam city, saudi ...

Greenhouse gas emitted by the transport sector around the world is a serious issue of concern. To minimize such emission the automobile engineers have been working relentlessly. Researchers have been trying hard to switch fossil fuel to alternative fuels and attempting to various driving strategies to make traffic flow smooth and to reduce traffic congestion and emission of greenhouse gas. Auto...

noise is defined as unwanted or objectionable sound. human susceptibility to noise varies in terms of intensity, altitude, timbre of sound, personal sensibility, age, and history of ear disorder. noise pollution which is the result of heterogeneous and uncontrolled developments of cities is one the serious problems in large cities of iran. although noise pollution in kerman (located in southeas...