Major climate-change issues covered by the daily newspapers of Bangladesh

Communications research scholars, political scientists, and policy analysts have significantly recognized the role of news media in reporting and portraying public issues. Nowadays, climate change is an important global environmental concern for the world communities. Study on the media coverage of climate-change issues is vitally important to know the present situation of both the global and regional climate, as well as to assess the causes, mitigation and adaptation techniques, and its adverse impacts. This study demonstrates the coverage of newspapers in Bangladesh on climate change from May 2006 through June 2009 for the three most popular newspapers of Bangladesh, namely The Prothom Alo, The Daily Ittefaq, and The Daily Star. Natural disasters was the major climate-change issue that received the most coverage, along with agriculture, biodiversity, global warming, climate change, crime, water scarcity, food scarcity, politics, wetlands, tourisms, rivers, forestry and miscellaneous issues. Local communication concerned with climate-change issues was given preference in the coverage by the newspapers throughout the study period. The study will be useful for awareness-program formulation on climate-change mitigation and adaptation in Bangladesh.     

Genetic damage induced by lead chloride in different tissues of fresh water climbing perch Anabas testudineus (Bloch)

The present investigation was undertaken to study the induction of DNA damage by lead chloride (PbCl(2)) in freshwater climbing perch Anabas testudineus using alkaline single cell gel electrophoresis (comet assay). Based on the LC(50) values of lead chloride of A. testudineus three different concentrations viz., 0.1, 1.0 and 2.0 mg/L were selected to expose fish. The DNA damage was observed in the gill, kidney and liver tissue as the percentage of DNA in comet tails and comet heads in the tissue of the exposed fish. DNA damage at different concentrations showed sensitivity to particular tissue. The liver tissue exhibited significantly (p < 0.01) higher DNA damage, followed by kidney and gill. However, the DNA damage was found to be dose dependent; at 2 mg/L of PbCl(2) the tail and head DNA of liver tissue were 57.84% and 39.49%, in kidney tissue the values were 52.36% and 44.97% whereas in gill tissue the values were 48.86% and 48.96% respectively. The current study explored the utility of the comet assay for in vivo laboratory studies using A. testudineus species for screening the genotoxic potential of lead chloride.     

COVID-19 and municipal solid waste (MSW) management: a review

Environmental Science and Pollution Research - Municipal solid waste (MSW) represents an inevitable by-product of human activity and a major crisis for communities across the globe. In recent...     

Preliminary assessment of trace elements in surface and deep waters of an urban river (Korotoa) in Bangladesh and associated health risk

Environmental Science and Pollution Research - Korotoa River is one of the most important urban rivers in Bangladesh for its utilization in various activities like agriculture, aquaculture,...     

Controlling environmental pollution: dynamic role of fiscal decentralization in CO2 emission in Asian economies

Environmental Science and Pollution Research - The “environment” has become one of the important and debatable topics of the world and policymakers identifying the new predictors of CO2...     

COVID-19, the firestone in 21st century: a review on coronavirus disease and its clinical perspectives

Environmental Science and Pollution Research - The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) outbreak began in late 2019 in Wuhan, China, and have since spread globally. Deep...     

阶梯形鱼道中的滚动流研究(英文)

最近 ,小型倾斜河流中的阶梯形鱼道建筑以它的简易与实用而变得日益重要。在这种鱼道中出现的滚动流将产生波涌 ,并继续向下传播 ,而且它的周期性滚动可能会严重危害鱼道。因此 ,我们着手研究了它的严重性以便设计者在设计鱼道时能考虑这些因素。由实验证实滚动流源于阶梯形鱼道的上游。滚动流在稳定流与半平滑流间转变 ,它在一定时间间隔内不断地从稳定流变成半平滑流 ,又从半平滑流变成稳定流。它的流量值随着阶梯形水道的几何形状变形而呈现上下限。流量值和时间间隔均随着水池长度的增加而增加。     

Municipal solid waste generation in China: influencing factor analysis and multi-model forecasting

Journal of Material Cycles and Waste Management - In the developing countries, the inadequacy of basic waste data is a significant obstacle for municipal solid waste management. To evaluate an...     

The nexus between environmental regulations,economic growth,and environmental sustainability: linking environmental patents to ecological footprint reduction in South Asia

Environmental Science and Pollution Research - Environmental sustainability has become a major concern for policymakers across the globe. In this regard, understanding the factors responsible for...     

Solid waste recycling in Rajshahi city of Bangladesh

Efficient recycling of solid wastes is now a global concern for a sustainable and environmentally sound management. In this study, traditional recycling pattern of solid waste was investigated in Rajshahi municipality which is the fourth largest city of Bangladesh. A questionnaire survey had been carried out in various recycle shops during April 2010 to January 2011. There were 140 recycle shops and most of them were located in the vicinity of Stadium market in Rajshahi. About 1906 people were found to be involved in recycling activities of the city. The major fraction of recycled wastes were sent to capital city Dhaka for further manufacture of different new products. Only a small amount of wastes, specially plastics, were processed in local recycle factories to produce small washing pots and bottle caps. Everyday, an estimated 28.13 tons of recycled solid wastes were handled in Rajshahi city area. This recycled portion accounted for 8.25% of the daily total generated wastes (341 ton d^?1), 54.6% of total recyclable wastes (51.49 ton d^?1) and 68.29% of readily recyclable wastes (41.19 ton d^?1). Major recycled materials were found to be iron, glass, plastic, and papers. Only five factories were involved in preliminary processing of recyclable wastes. Collecting and processing secondary materials, manufacturing recycled-content products, and then buying recycled products created a circle or loop that ensured the overall success of recycling and generated a host of financial, environmental, and social returns.