Assimilative capacity approach for air pollution control in automotive engines through magnetic field-assisted combustion of hydrocarbons

Environmental Science and Pollution Research - Deterioration of air quality through the combustion of hydrocarbon fuels has been one of the global transboundary problems put before the research...     

Petroleum hydrocarbon concentrations in eight mollusc species along Tamilnadu coast, Bay of Bengal, India

Eight mollusc species and sediment samples collected from three different stations along Tamilnadu coast, Bay of Bengal, India were analysed for the levels of petroleum hydrocarbons to elucidate the status of the petroleum residues in mollusc meant for human consumption. The concentrations of petroleum hydrocarbons in sediments along Tamilnadu coast varied from 5.04–25.5 g/g dw (dry weight). High concentration of petroleum hydrocarbons in the sediment of Uppanar estuary (25.5 1.45 g/g dw) was perhaps land and marine based anthropogenic sources of this region. The petroleum hydrocarbon residues in eight mollusc species collected from Uppanar, Vellar and Coleroon estuaries varied between 2.44–6.04 g/g ww (wet weight). Although the concentration of petroleum hydrocarbons in sediment of the Uppanar region was markedly higher than the background, the petroleum hydrocarbon residues in mollusc collected from Uppanar estuary did not suggest bioaccumulation. The results signified that industrial growth has affected the aquatic environments and regular monitoring will help to adopt stringent pollution control measures for better management of the aquatic region.     

Food packaging: pectin–laponite–Ag nanoparticle bionanocomposite coated on polypropylene shows low O2 transmission,low Ag migration and high antimicrobial activity

Environmental Chemistry Letters - In food packaging, developing antimicrobial bionanocomposite coated films with additional function for food safety and shelf life extension is a challenge. Silver...     

清洁生产与可持续发展的关系

清洁生产作为一项可持续性发展战略,其成就应该在与环境、经济和社会影响的关系中进行量度.清洁生产在世界范围的执行成果已经被经济增长和消费的提高所抵消.世界贸易组织,还有世界银行和其他最主要的机构,已经使得发展危机雪上加霜,而且应对日益退化的环境负责.对跨国公司的监控与管制已经失败.更需要在跨国公司政策上做强制性改变,以及促进更大的社会与环境责任.     

清洁生产与可持续发展的关系

清洁生产作为一项可持续性发展战略,其成就应该在与环境、经济和社会影响的关系中进行量度.清洁生产在世界范围的执行成果已经被经济增长和消费的提高所抵消.世界贸易组织,还有世界银行和其他最主要的机构,已经使得发展危机雪上加霜,而且应对日益退化的环境负责.对跨国公司的监控与管制已经失败.更需要在跨国公司政策上做强制性改变,以及促进更大的社会与环境责任.     

A pilot study on water pollution and characterization of multidrug-resistant superbugs from Byramangala tank, Ramanagara district, Karnataka, India

Urbanization and industrialization has increased the strength and qualities of municipal sewage in Bangalore, India. The disposal of sewage into natural water bodies became a serious issue. Byramangala reservoir is one such habitat enormously polluted in South India. The water samples were collected from four hotspots of Byramangala tank in 3 months. The biochemical oxygen demand (BOD) and bacterial counts were determined. The fecal coliforms were identified by morphological, physiological, and biochemical studies. The antibiotics sensitivity profiling of isolated bacteria were further carried out. We have noticed that a high content of BOD in the tank in all the 3 months. The total and fecal counts were found to be varied from 1.6?×?10⁶ to 8.2?×?10⁶?colony forming unit/ml and >5,500/100 ml, respectively. The variations in BOD and total count were found to be statistically significant at p?>?0.05. Many pathogenic bacteria were characterized and most of them were found to be multidrug resistant. Salmonella showed resistance to cefoperazone, cefotaxime, cefixime, moxifloxacin, piperacillin/tazobactam, co-trimoxazole, levofloxacin, trimethoprim, and ceftazidime. Escherichia coli showed resistance to chloramphenicol, trimethoprim, co-trimoxazole, rifampicin, and nitrofurantoin while Enterobacter showed resistant to ampicillin, cefepime, ceftazidime, cefoperazone, and cefotaxime. Klebsiella and Shigella exhibited multiple drug resistance to conventional antibiotics. Staphylococcus showed resistance to vancomycin, methicillin, oxacillin, and tetracycline. Furthermore, Salmonella and Klebsiella are on the verge of acquiring resistance to even the strongest carbapenems-imipenem and entrapenem. Present study revealed that Byramanagala tank has become a cesspool of multidrug-resistant “superbugs” and will be major health concern in South Bangalore, India.     

Petroleum hydrocarbon concentrations in ten commercial fish species along Tamilnadu coast,Bay of Bengal,India

Background, aim, and scope  

The aim of the present study was to evaluate the distribution of petroleum hydrocarbons in ten commercial fish species and water samples in three estuaries along Tamilnadu coast, Bay of Bengal, India.