Atmospheric deposition of Pb, Cd, Cu and Zn in Bombay, India

Trace metal determination in total atmospheric deposition in rural and urban areas

“…The high concentration of this element was probably induced by work done during our sampling period on building roof, which is made with Zn-covered metal sheets located 100 m from our collectors. Indeed, we have noticed that our TD determination for Zn in Morvan park is higher than previous works done in rural areas (Migon et al, 1997;Ridame et al, 1999) and lower than other results in urban areas (Tripathi et al, 1993;Vukmirovic et al, 1997). Such differences may be related to the presence of point sources, which are clearly site-specific.…”

“…Results obtained both in rural and urban areas showed no significant difference between the two research groups for the 99% CI. Furthermore, if we exclude Zn flux in the rural site, we could observe a good agreement between values measured at each site with published data collected in similar land occupation sites (Tripathi et al, 1993;Vukmirovic et al, 1997;Hovmand and Kemp, 1998;Garnaud, 1999;Ridame et al, 1999). Indeed, our results are in the same order of magnitude than previous studies.…”

Atmospheric Concentration of Trace Elements, Dry Deposition Fluxes and Source Apportionment Study in Mumbai

“…Bhanarkar et al, (2005) have been carried out inventory of toxic elements for industrial sources in Greater Mumbai. Atmospheric deposition of trace elements like Pb, Cd, Cu and Zn was studied at Deonar, Bombay, India (Tripathi et al, 1993). They indicated that dry deposition flux of these trace elements was in the range of 0.2 to -104.6 kg km -2 yr -1 .…”

“…Recently, measurement on dry deposition fluxes of elements and their velocities studies were also reported at Brazil, Taiwan and Tokyo (Fang et al, 2007;Pedro et al, 2007;Sakata et al, 2008). In India, status of airborne toxic elements at different land used pattern locations in major urban cities has been reported (Tripathi et al, 1993;Gajghate and Hasan, 1999;Gajghate and Bhanarkar 2005a, b;Gajghate et al, 2005). Bhanarkar et al, (2005) have been carried out inventory of toxic elements for industrial sources in Greater Mumbai.…”

Concentration and Distribution of Inorganic Ions in Rainwater of Jos and Bukuru Metropolis, Plateau State, Nigeria

“…A correlation matrix, using SPSS Version11.00, showing strong correlation of 99.99% with NO 3 -, NO 2 -and SO 4 2-, confirms this. This indicates that the atmospheric aerosols exist as either (NH 4 )NO 3 , (NH 4 )NO 2 or (NH 4 ) 2 SO 4 due to gas phase reaction below the cloud level [11], [21], [30]. Here it is critical that all but the NH 4 + concentration at S 2 exceed the WHO standard.…”