title: Application of microwave plasma atomic emission spectrometry (MP-AES) for environmental monitoring of industrially contaminated sites in Hyderabad city.
abstract: Recently introduced microwave plasma-atomic emission spectroscopy (MP-AES) represents yet another and very important addition to the existing array of modern instrumental analytical techniques. In this study, an attempt is made to summarize the performance characteristics of MP-AES and its potential as an analytical tool for environmental studies with some practical examples from Patancheru and Uppal industrial sectors of Hyderabad city. A range of soil, sediment, water reference materials, particulate matter, and real-life samples were chosen to evaluate the performance of this new analytical technique. Analytical wavelengths were selected considering the interference effects of other concomitant elements present in different sample solutions. The detection limits for several elements were found to be in the range from 0.05 to 5 ng/g. The trace metals analyzed in both the sectors followed the topography with more pollution in the low-lying sites. The metal contents were found to be more in ground waters than surface waters. Since a decade, the pollutants are transfered from Patancheru industrial area to Musi River. After polluting Nakkavagu and turning huge tracts of agricultural lands barren besides making people residing along the rivulet impotent and sick, industrialists of Patancheru are shifting the effluents to downstream of Musi River through an 18-km pipeline from Patancheru. Since the effluent undergoes primary treatment at Common Effluent Treatment Plant (CETP) at Patanchru and travels through pipeline and mixes with sewage, the organic effluents will be diluted. But the inorganic pollutants such as heavy and toxic metals tend to accumulate in the environmental segments near and downstreams of Musi River. The data generated by MP-AES of toxic metals like Zn, Cu, and Cr in the ground and surface waters can only be attributed to pollution from Patancheru since no other sources are available to Musi River.
authors.affiliation: Geochemistry Division, CSIR-National Geophysical Research Institute, Hyderabad, 500007, India, ct.kamala@gmail.com.
authors.lastname: Kamala C T
authors.lastname: Balaram V
authors.lastname: Dharmendra V
authors.lastname: Satyanarayanan M
authors.lastname: Subramanyam K S V
authors.lastname: Krishnaiah A
mesh_terms: D004784:Environmental Monitoring / Q000379:methods*; D004785:Environmental Pollutants / Q000032:analysis* / Q000737:chemistry; D004787:Environmental Pollution / Q000032:analysis; D007220:Industrial Waste / Q000032:analysis*; D008670:Metals / Q000032:analysis; D008872:Microwaves; D010154:Pakistan; D013054:Spectrophotometry, Atomic
chemical_list: D004785:Environmental Pollutants; D007220:Industrial Waste; D008670:Metals
references.citation: Environ Int. 2003 Aug;29(5):601-11
references.pmid: 12742403
references.citation: Environ Monit Assess. 2012 Jun;184(6):3557-76
references.pmid: 21773865
references.citation: Environ Monit Assess. 2007 Aug;131(1-3):117-27
references.pmid: 17242971
references.citation: Ecotoxicol Environ Saf. 2008 Mar;69(3):513-24
references.pmid: 17555815
references.citation: Environ Monit Assess. 1995 Jul;36(3):229-49
references.pmid: 24197779
references.citation: Environ Pollut. 1988;50(1-2):139-61
references.pmid: 15092656
references.citation: Talanta. 2013 Aug 15;112:43-8
references.pmid: 23708535
references.citation: Anal Bioanal Chem. 1995 Sep;353(2):176-82
references.pmid: 15048536
references.citation: Indian J Pharmacol. 2011 May;43(3):246-53
references.pmid: 21713085