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171.
Goyal Keshav Goel Harsh Baranwal Pritika Dixit Aman Khan Fahad Jha Niraj Kumar Kesari Kavindra Kumar Pandey Pratibha Pandey Avanish Benjamin Mercilena Maurya Ankit Yadav Vandana Sinh Rana Suryauday Tanwar Pranay Upadhyay Tarun Kumar Mittan Sandeep 《Environmental science and pollution research international》2022,29(41):61993-62013
Environmental Science and Pollution Research - Environmental mutagens are chemical and physical substances in the environment that has a potential to induce a wide range of mutations and generate... 相似文献
172.
Pankaj Lal Janaki R. R. Alavalapati Evan D. Mercer 《Mitigation and Adaptation Strategies for Global Change》2011,16(7):819-844
Directly or indirectly, positively or negatively, climate change will affect all sectors and regions of the United States.
The impacts, however, will not be homogenous across regions, sectors, population groups or time. The literature specifically
related to how climate change will affect rural communities, their resilience, and adaptive capacity in the United States
(U.S.) is scarce. This article bridges this knowledge gap through an extensive review of the current state of knowledge to
make inferences about the rural communities vulnerability to climate change based on Intergovernmental Panel on Climate Change
(IPCC) scenarios. Our analysis shows that rural communities tend to be more vulnerable than their urban counterparts due to
factors such as demography, occupations, earnings, literacy, poverty incidence, and dependency on government funds. Climate
change impacts on rural communities differs across regions and economic sectors; some will likely benefit while others lose.
Rural communities engaged in agricultural and forest related activities in the Northeast might benefit, while those in the
Southwest and Southeast could face additional water stress and increased energy cost respectively. Developing adaptation and
mitigation policy options geared towards reducing climatic vulnerability of rural communities is warranted. A set of regional
and local studies is needed to delineate climate change impacts across rural and urban communities, and to develop appropriate
policies to mitigate these impacts. Integrating research across disciplines, strengthening research-policy linkages, integrating
ecosystem services while undertaking resource valuation, and expanding alternative energy sources, might also enhance coping
capacity of rural communities in face of future climate change. 相似文献
173.
Ningombam Linthoingambi Devi Ishwar Chandra Yadav 《Environmental geochemistry and health》2018,40(6):2343-2358
While metal pollution and distribution in soil are well documented for many countries, the situation is more serious in developing countries because of the rapid increase in industrialization and urbanization during last decades. Although it is well documented in developed countries, data about substantial metal pollution in Indian soil, especially in eastern Ganges alluvial plain (GAP), are limited. In this study, eight different blocks of Patna district located in eastern GAP were selected to investigate the contamination, accumulation, and sources of metals in surface soil considering different land use types. Additionally, human health risk assessment was estimated to mark the potential carcinogenic and non-carcinogenic effect of metals in soil. The concentration of all metals (except Pb) in soil was below the Indian standard limit of the potential toxic element for agricultural soil. Pb was the most abundant in soil, followed by Zn and Cu, and accounted for 52, 33 and 8% of the total metal. In terms of land use types, roadside soil detected higher concentrations of all metals, followed by park/grassland soil. Principal component analysis results indicated traffic pollution and industrial emissions are the major sources of heavy metals in soil. This was further confirmed by strong inter-correlation of heavy metals (Cd, Cr, Ni, Cu and Pb). Human health risk assessment results indicated ingestion via soil as the primary pathway of heavy metal exposure to both adults and children population. The estimated hazard index was highest for Pb, suggesting significant non-carcinogenic effect to both adults and children population. The children were more prone to the non-carcinogenic effect of Pb than adults. However, relatively low cancer risk value estimated for all metals suggested non-significant carcinogenic risk in the soil. 相似文献
174.
Novel degradation pathway of 4-chloro-2-aminophenol via 4-chlorocatechol in Burkholderia sp. RKJ 800
Pankaj Kumar Arora Alok Srivastava Vijay Pal Singh 《Environmental science and pollution research international》2014,21(3):2298-2304
Burkholderia sp. RKJ 800 utilized 4-chloro-2-aminophenol (4C2AP) as the sole carbon and energy source and degraded it with release of chloride and ammonium ions. The metabolic pathway of degradation of 4C2AP was studied and a novel intermediate, 4-chlorocatechol was identified as a major degradation product of 4C2AP using high-performance liquid chromatography and gas chromatography–mass spectrometry. Enzyme activities for 4C2AP-deaminase and 4-chlorocatechol-1,2-dioxygenase were detected in the crude extracts of the 4C2AP-induced cells of strain RKJ 800. The activity of the 4C2AP-deaminase confirmed the formation of 4-chlorocatechol from 4C2AP and the 4-chlorocatechol-1,2-dioxygenase activity suggested the cleavage of 4-chlorocatechol into 3-chloro-cis,cis-muconate. On the basis of the identified metabolites, we have proposed a novel degradation pathway of 4C2AP for Burkholderia sp. RKJ 800. Furthermore, the potential of Burkholderia sp. RKJ 800 to degrade 4C2AP in soil was also investigated using microcosm studies under laboratory conditions. The results of microcosm studies conclude that Burkholderia sp. RKJ 800 was able to degrade 4C2AP in soil and may be used to remediate 4C2AP-contaminated site. This is the first report of (1) the formation of 4-chlorocatechol and 3-chloro-cis,cis-muconate in the degradation pathway of 4C2AP and (2) bioremediation of 4C2AP by any bacterium. 相似文献
175.
176.
Soni Tiwari Priyanka Rai Santosh Kumar Yadav Rajeeva Gaur 《Environmental science and pollution research international》2013,20(6):4046-4058
The present study was aimed to characterize physico-chemical and microbial population of distillery effluent and isolate a novel thermotolerant bacterium for color, COD, and BOD reduction of spentwash. The level of alkalinity, TSS, DO, COD, BOD, TN, ammonical nitrogen, nitrate nitrogen, phosphorous, potassium, chloride, and calcium of spentwash (SW), bioreactor effluent (BE), and secondary treated effluent (STE) were well above the permissible limits. The level of color, TS, and TDS were under the permissible limits for STE but not for SW and BE. The microbial population was higher in BE. The results revealed that effluent was highly polluted and require suitable treatment before discharge. A novel thermotolerant bacterium, identified as Pediococcus acidilactici, was isolated which exhibited maximum 79 % decolorization, 85 % COD, and 94 % BOD reduction at 45 °C using 0.1 %, glucose; 0.1 %, peptone; 0.05 %, MgSO4; 0.05 %, K2HPO4; pH 6.0 within 24 h under static condition. The ability of this strain to decolorize melanoidin at minimum carbon and nitrogen supplementation warrants its possible application for effluent treatment at industrial level. In addition, it is first instance when melanoidin decolorization was reported by P. acidilactici. This study could be an approach towards control of environmental pollution and health hazards of people in and around the effluent distillery unit. 相似文献
177.
Environment, Development and Sustainability - As per the objective of the present experimental investigation, influence of various configurations of manifolds for optimum flow distribution in... 相似文献
178.
Pankaj Pandey Sreekala Bajwa Dilpreet Bajwa 《Journal of Polymers and the Environment》2018,26(6):2311-2322
The steady increase in production of corn based ethanol fuel has dramatically increased the supply of its major co-product known as distiller’s dried grain with solubles (DDGS). Large amount of DDGS and corn flour are used as an animal feed. The elusieve process can separate DDGS or corn flour into two fractions: DDGS fraction with enhanced protein and oil content or corn flour fraction with high starch content, and hull fiber. This study investigated the feasibility of using fiber from DDGS and corn grain as alternative fillers to wood fiber in high density polyethylene (HDPE) composites made with two different sources of polymers. Two fiber loading rates of 30 and 50% were evaluated for fiber from DDGS, corn, and oak wood (control) to assess changes in various physical and mechanical properties of the composite materials. Two HDPE polymers, a bio-based HDPE made from sugarcane (Braskem), and a petroleum based HDPE (Marlex) were also compared as substrates. The biobased polymer composites with DDGS and corn fibers showed significantly lower water absorption than the Marlex composite samples. The Braskem composite with 30% DDGS fiber loading showed the highest impact resistance (80 J/m) among all the samples. The flexural properties showed no significant difference between the two HDPE composites. 相似文献
179.
Verma Neha Pandit Soumya Gupta Piyush Kumar Kumar Sanjay Kumar Anil Giri Shiv Kumar Yadav Gulab Priya Kanu 《Environmental science and pollution research international》2022,29(21):30954-30966
Environmental Science and Pollution Research - Long-term exposure to organic solvents is known to affect human health posing serious occupational hazards. Organic solvents are genotoxic, and they... 相似文献
180.
Nadimuthu Lalith Pankaj Raj Victor Kirubakaran 《Environmental science and pollution research international》2021,28(26):34278-34289
Environmental Science and Pollution Research - The last mile connectivity through public transport is a challenging task in India. However, according to the Society of Indian Automotive... 相似文献