Environmental quality monitoring and impact assessment of solid waste dumpsites in high altitude sub-tropical regions
2019
Kumar, Sunil | Dhar, Hiya | Nair, Vijay V. | Rėna, | Govani, Janki | Arya, Shashi | Bhattacharya, J.K. | Vaidya, A.N. | Akolkar, A.B.
Solid Waste Management (SWM) in high altitude regions is critically phased because of the non-availability of suitable facilities for the treatment and handling of large quantities of Municipal Solid Waste (MSW). Open burning practices at hill slopes were noticed which affect the surrounding environment. Hence, it became essential to measure the environmental components around the dumpsites to examine the impacts and suggest new technological solutions. The pollution parameters were monitored in and around the dumpsites, and the data was analysed using statistical tools. The assessment of air quality indicated maximum fine suspended particulate matter (PM₂.₅) concentration of 206.66 μg/m³ followed by respairable particulate matter (PM₁₀), oxides of nitrogen (NOₓ) and sulphur dioxide (SO₂). Among the gaseous emissions, methane (CH₄) concentration was very high (38.53 mg/L) followed by carbon monoxide (CO) concentration (0.96 mg/L). Volatile organic compounds (VOCs) were also detected at few dumpsites with highest observed benzene (C₆H₆) concentration of 157.53 μg/m³. The soil sample analysis indicated that iron (Fe) concentration dominates followed by manganese (Mn), zinc (Zn), chromium (Cr), copper (Cu), and nickel (Ni). For evaluation of different alternatives for the SWM system, Rapid Impact Assessment Matrix (RIAM) was applied.
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