Abstract. Naturally and anthropogenically emitted aerosols, which are determined by their physical chemical properties, have an impact on both air quality the radiative properties of earth. An important source atmospheric particulate matter (PM) in South Africa is household combustion for space heating cooking, predominantly occurs low-income urban settlements. The aim this study was to conduct...

Animal wastes are a major contributor of nutrients and enteric microorganisms to surface water and ground water. Polyacrylamide (PAM) mixtures are an effective flocculent, and we hypothesized that they would reduce transport of microorganisms in flowing water. After waste water running at 60.0 1 min(-1) flowed over PAM + Al2(SO4)3, or PAM + CaO in furrows, total coliform bacteria (TC) and fecal...

On the basis of recently estimated emission inventory for East Asia with a resolution of 1x1, the transport and chemical transformation of sulfur compounds over East Asia during the period of February 22 through May 4, 2001, was investigated by using the Models-3 Community Multi-scale Air Quality (CMAQ) modeling system with meteorological fields calculated by the Regional Atmospheric Modeling S...

This paper presents the results of a study of variation in the chemical composition of wet precipitation over a 16-year period. The ions SO4 2, NO3 , Cl , Ca 2+ , Mg 2+ K + , Na + , NH4 + and H + were analyzed. The correlation analysis showed a high positive correlation among these ions, indicating that anthropogenic emissions were the most important source. Trends in annual concentrations of S...

According to the latest European regulatory policy a close attention is paid to research into the use of biomarkers and surrogate markers in the development of pharmaceuticals. Since early sixties of the last century when a sulphation of serotonin was described from which the biotransformation product serotonin-O-sulfate (5-HT-SO4) was formed, is assumed it accentuates the intensity of serotoni...

Sulfate-rich acid waters produced by oxidation of sulfide minerals enhance U mobility around U ores and U-bearing radioactive waste. Upon evaporation, several secondary uranyl minerals, including many uranyl sulfates, precipitate from these waters. The zippeite-group of minerals is one of the most common and diverse in such settings. To decipher the nature and crystal chemistry of the zippeite-...

the main purpose of this research is to evaluate the hydrochemical properties, con-trolling processes and metal concentrations in kaka-reza river water (lorestan province). to this end, 15 water samples were collected and physicochemical prop-erties (ph-ec), cation-anion contents along with concentrations of some heavy metals were determined using the standard analytical methods. the results re...

Recently, a link has been suggested between volcanic deposition of SO4 and the suppression of CH4 emissions in northern peatlands (Gauci et al., 2008). This link stems from the widely accepted idea that acid rain SO4 additions to peatlands can cause a shift in microbial communities as SO4 reducing bacteria out-compete methanogens for substrates, which results in a suppression of CH4 emission. H...