introduction atmosphere health is an important environmental issue and air pollution is not a local problem in a given area of the world. particles produced by either humans or the nature enter the atmosphere and return the earth’s surface at local, regional, or global scales after physico-chemical interactions. according to the reports by who, each year 2.4 million people lose their lives worl...

Abstract The issue of accumulation dust and other pollutants on the surface photovoltaic modules was thoroughly analysed over years. One first surveys in this field knowledge linked pollutant module with transmittance loss its glass covering, which leads to lessened amount solar radiation reaching cells. First stage process is linear transparency loss, second - molecule agglomeration settlement...

Abstract This paper is aimed at assessing by theory and experiment the current–voltage power-voltage characteristics of a PV module as influenced dust accumulation. A method proposed in computer code to follow-up an incident solar radiation through layers considering reflection transmission interfaces between evaluate how attenuated before reaching module. Also, absorption layer glass cover con...

lead as non-essential metal, is known the source of toxicity and impacts on the environment and humans. the goal of recent paper is to determine the pb concentration of road and road margin dust of ghamishlu wildlife refuge in isfahan province with an area about 120,000 hectares surrounded by four main roads. traffic load in the southern freeway have been reported as about 3600-19000 cars/day. ...

dust can be produced by almost all production processes in portland cement factory. dust exposure potentially can affect respiratory function. but evidence for respiratory effect of cement dust exposure has not been conclusive. in this study we assessed effect of cement dust exposure on respiratory function in a cement production factory. a respiratory symptoms questionnaire was completed and p...

the present study aimed at assessing cement dust exposure and its relationship to lung function at a portland cement factory in ilam, iran. lung function tests were carried out on 112 workers at the cement factory in 2008-09. simultaneously 85 non exposed workers were used as control. lung function tests were performed for all subjects. additionally, total dust level was determined by the gravi...

the aim of this study is to determine the area affected by dust storms in different wind speeds using satelliteimages. in the first step, windy conditions of the sistan plain were analyzed using wind statistics data. next, fivestormy days of zabol city, indicating different wind speeds and horizontal visibilities during those storms, wereselected. then, high temporal resolution modis data was u...

This paper presents results of an aerosol chemical characterisation experiment conducted on the Island of Jeju, Korea, using a range of techniques for analysing inorganic and organic particle components. Sulphate and ammonium were biased toward the accumulation mode size ranges. Nitrate, sodium, calcium and chloride were found in the larger size ranges and attributed to the collection of modifi...