The paper reports very important findings on long term rain chemistry data from dry remote savanna site in Africa. The interesting part of observations is that the site has unique characteristics regarding chemical composition of rain water. In most of the temperate regions where acid rain is common phenomenon, the acidity is mainly reported due to very high non sea salt SO42-. The major role p...

Numerous studies have revealed an association between particulate matter (PM) and emergency room (ER) visits, although few studies have investigated the association between health and PM components. The present study evaluated the associations of ER visits for cardiovascular and respiratory diseases with PM2.5 components, including organic carbon (OC), elemental carbon (EC), and ion species (SO...

OBJECTIVES To assess cardiopulmonary morbidity associated with daily exposures to PM2.5 in Western Coast of Saudi Arabia. Methods: We monitored 24-h PM2.5 and its constituents including black carbon (BC), particulate sulfate (p-SO42-), nitrate (p-NO3-), ammonium (p-NH4+) and trace elements (TEs) at a site in Rabigh, Saudi Arabia from May to June 2013 with simultaneous collection of hospital dat...

Submicron aerosols (PM1) have more serious effect on the visibility, air quality, human health and climate change compared to coarse particles (particle size between 2.5 10 ?m). There is practical significance in understanding formation mechanisms sources of these particles. In this study, we conducted real-time measurements composition non-refractory submicron (NR-PM1) Guangzhou from 20 Octobe...

This work presents the results of a ten-year investigation (2010–2019) on characteristics and sources precipitation pollution in typical cities locating economic belt North Slope Tianshan Mountain, Xinjiang. The water-soluble ions’ (Na+, NH4+, K+, Mg2+, Ca2+, F?, Cl?, SO42?, NO3?), neutralizing capacity, wet deposition Urumqi, Karamay Yining during 2010–2019 were compared analyzed. study showed...

A year-long study was performed to comprehensively investigate the mass concentration, water-soluble ions, organic and elemental carbons, and elemental components of atmospheric fine particles from March 2006 to February 2007 in Qingdao. The results showed that PM2.5 concentration was over twice the National Ambient Air Quality Standards of 35 μg/m3 (GB3095-2012), with the highest value in wint...

To explore the contributions of chemical components in particulate matter Lhasa, size distribution characteristics components, such as carbonaceous species (organic carbon, OC; elemental EC), water-soluble ions (NH4+, Cl−, SO42−, and NO3−) trace elements (Na, Ca, Al, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, K, Mg, Pb), were investigated from August 2018 to May 2019. Principal component analysis (PCA) was...

The formation of inorganic fine particulate matter (i.e., iPM2.5) is controlled by the thermodynamic equilibrium partitioning NH3-NH4+. To develop effective control strategies PM2.5, we aim to understand impacts changes in different precursor gases on iPM2.5 concentrations and NH3-NH4+ southeastern U.S., responses four seasons were investigated using field measurements iPM2.5, gases, meteorolog...

Leachate and groundwater samples were collected from Vendipalayam, Semur and Vairapalayam landfill sites in Erode city, Tamil Nadu, India, to study the possible impact of leachate percolation on groundwater quality. Concentrations of various physicochemical parameters including heavy metals (Cd, Cr, Cu, Fe, Ni, Pb, Fe and Zn) were determined in leachate samples and are reported. The concentrati...