Long-term investigation of atmospheric mercury contamination in Connecticut.

Atmospheric mercury was monitored from January 1997 through the end of December 1999 in eight sampling locations in Connecticut. Four sampling locations were chosen along the shores of Long Island Sound and four were chosen in interior sections of Connecticut. Sampling locations were chosen to represent both rural and urban sectors. Average concentrations of gaseous and particulate mercury were found to be 2.06 ng/m3 and 10.5 pg/m3, respectively. The weekly average wet deposition fluxes of mercury and methylmercury over the three-year sampling period were measured to be 611 and 11 microg/ha/week, respectively. Concentrations of gaseous, particulate and wet flux of mercury were found to be significantly higher in urban areas than the rural sampling locations. There was, however, no significant difference between the mean gaseous and particulate concentrations of mercury in coastal and inland sampling locations. No significant difference was observed either between the wet fluxes of total mercury in coastal and inland sampling locations and there was no spatial gradient for mercury concentration and deposition. The data of this study suggest that vehicular traffic and localized emission sources in urban areas play a significant role in determining the atmospheric concentration of mercury in Connecticut.     

Mechanical and thermo-physical characterization of mortars made with uncontaminated marine sediments

Journal of Material Cycles and Waste Management - In a context of sustainable development, civil engineering must increasingly use recyclable materials to preserve natural resources. Sediments...     

Occupational ocular health problems among marble workers at Shaq El Tho’ban industrial area in Egypt

Environmental Science and Pollution Research - Eye health of the working population is an essential condition for productivity. Marble industry is processed at large scale at Shaq El Tho’ban...