Secondary organic carbon (SOC) formation and its effects on human health require better understanding in Chinese megacities characterized by a severe particulate OPEN ACCESS Atmosphere 2015, 6 362 pollution and robust economic reform. This study investigated organic carbon (OC) and elemental carbon (EC) in PM2.5 and PM0.25 collected 8–20 March 2012. Samples were collected inside and outside a c...

The influent type of organic matter (dissolved or particulate) on the characteristics of two subsurface wastewater infiltration systems (SWISs) was investigated. One of the SWISs was fed with dissolved organic matter (glucose, assumed to be readily biodegradable) and the other with particulate organic matter (starch, assumed to be slowly biodegradable). Results showed that both biofilm growth a...

Exopolymeric substances (EPS) isolated from a pure culture of the marine bacterium Marinobacter sp. and the marine diatom Skeletonema costatum (axenic) were partially purified, chemically characterized and used as dissolved organic matter (DOM) for the production of macroaggregates. The role of organic particles such as transparent exopolymeric particles (TEP) and Coomassie stained particles (C...

The palynofacies and kerogen analysis of the Upper Cretaceous units (Campanian-Maastrichtian) of the Anambra Basin, Southeastern Nigeria was carried out in the studied area. Two major palynofacies types were identified based on the abundance of particulate organic matter. The palynofacies ―A‖ is characterized by abundant phytoclasts, frequent opaqes common amorphous organic matter and carbon to...

Submit Manuscript | http://medcraveonline.com Abbreviations: CCRs: Cumulative Cancer Risks; ETS: Environmental Tobacco Smoking; HAPs: Hazardous Air Pollutants; HEATS: Houston Exposure to Air Toxics Study; OVM: Organic Vapor Monitor (3MTM); PAHs: Polycyclic Aromatic Hydrocarbons; PM2.5: Particles Less Than 2.5 Micrometers in Diameter, Fine Particulate Matter; RIOPA: Relationship Among Indoor, Ou...

Trace element distribution was monitored for Uluabat lake water polluted with point and non-point sources in Bursa. An examination of Zn, Cr, Ni, Cu, Pb, As, B concentrations during the study period indicated that the particulate phase at the bottom of the water column were high in regard to dissolved phase. The source of trace elements in the deeper parts of the water column was derived from t...

The increasingly more stringent phosphorus (P) discharge limits, which are below the concentrations reliably achievable with currently available technologies, demand for better understanding of phosphorus removal mechanisms. This study investigated the compositional fractions of phosphorus (P) in various effluents as well as the efficacy of different levels of treatment processes for removing d...

The chemical characteristics of ambient particulate matters in urban and rural areas of Hong Kong were determined in this study. A monitoring program starting from November 2000 to February 2001 (winter) and June 2001 to August 2001 (summer) for PM10 and PM2.5 was performed at three monitoring stations in Hong Kong. Twenty-four-hour PM10 and PM2.5 samples were collected once every 6 days at two...

polycyclic aromatic hydrocarbons (pahs) have been determined in the atmosphere of isfahan, iran. airborne particulate matter was sampled using a high-volume air sampler at roof-top level (~6m). extraction of pahs from airborne particulate matter has been performed using sfe system and the relationship between the extraction temperature and the recovery of pahs from airborne particulates is inve...