A blessing in disguise: new insights on the effect of COVID-19 on the carbon emission,climate change,and sustainable environment

Environmental Science and Pollution Research - COVID-19, declared by the World Health Organization (WHO) to be a pandemic, has affected greenhouse gas emissions and contributed to the uncertainty...     

使用在线SPE(固相萃取)和LC/MS/MS(三重四极杆质谱)联用系统定量测定水中痕量新型污染物

近年来,有报道称在美国境内发现饮用水和地表水中存在痕量水平的药物和其他不应存在的化学物质.由于这些被关注的新型污染物(CEC)通常处于很低的水平,因此需要检测的样品无法通过大规模的离线样品制备而得到.相比离线SPE(固相萃取),在线SPE具备许多为人熟知的优势.然而,在线SPE的安装非常复杂,需要使用多个泵用于上样和分析,还需要使用多个阀控制每个泵的流速.这样就增加了在线SPE的成本,也带来技术壁垒和潜在技术转移等问题.本文使用了一种集成阀和液体计量系统,将在线SPE与液相色谱三重四极杆质谱仪(LC/MS/MS)结合在一起.这     

Does energy use and economic growth allow for environmental sustainability? An empirical analysis of Pakistan

Environmental Science and Pollution Research - The rapid growth of environmental pollution and the destruction of eco-systems force every individual economy to focus on environmentally friendly...     

Hydrology of mountainous areas in the upper Indus Basin, Northern Pakistan with the perspective of climate change

Mountainous areas in the northern Pakistan are blessed by numerous rivers that have great potential in water resources and hydropower production. Many of these rivers are unexploited for their water resource potential. If the potential of these rivers are explored, hydropower production and water supplies in these areas may be improved. The Indus is the main river originating from mountainous area of the Himalayas of Baltistan, Pakistan in which most of the smaller streams drain. In this paper, the hydrology of the mountainous areas in northern Pakistan is studied to estimate flow pattern, long-term trend in river flows, characteristics of the watersheds, and variability in flow and water resource due to impact of climate change. Eight watersheds including Gilgit, Hunza, Shigar, Shyok, Astore, Jhelum, Swat, and Chitral, Pakistan have been studied from 1960 to 2005 to monitor hydrological changes in relation to variability in precipitation, temperature and mean monthly flows, trend of snow melt runoff, analysis of daily hydrographs, water yield and runoff relationship, and flow duration curves. Precipitation from ten meteorological stations in mountainous area of northern Pakistan showed variability in the winter and summer rains and did not indicate a uniform distribution of rains. Review of mean monthly temperature of ten stations suggested that the Upper Indus Basin can be categorized into three hydrological regimes, i.e., high-altitude catchments with large glacierized parts, middle-altitude catchments south of Karakoram, and foothill catchments. Analysis of daily runoff data (1960-2005) of eight watersheds indicated nearly a uniform pattern with much of the runoff in summer (June-August). Impact of climate change on long-term recorded annual runoff of eight watersheds showed fair water flows at the Hunza and Jhelum Rivers while rest of the rivers indicated increased trends in runoff volumes. The study of the water yield availability indicated a minimum trend in Shyok River at Yogo and a maximum trend in Swat River at Kalam. Long-term recorded data used to estimate flow duration curves have shown a uniform trend and are important for hydropower generation for Pakistan which is seriously facing power crisis in last 5 years.     

The impact of COVID-19 pandemic on air pollution: a global research framework,challenges, and future perspectives

Environmental Science and Pollution Research - As a result of extreme modifications in human activity during the COVID-19 pandemic, the status of air quality has recently been improved. This...     

Inoculation of Azospirillum brasilense and exogenous application of trans-zeatin riboside alleviates arsenic induced physiological damages in wheat (Triticum aestivum)

Environmental Science and Pollution Research - Due to increased industrialization, arsenic (As) in the soil has become a serious issue for wheat production since past few decades. We investigated...     

Economic and financial impact of the COVID-19 pandemic in South Asia

Environmental Science and Pollution Research - The world is facing a COVID-19 pandemic outbreak with an unprecedented and enormous impact on the lives of humankind. The economic engine has suffered...     

The impact of crude oil prices on Chinese stock markets and selected sectors: evidence from the VAR-DCC-GARCH model

Environmental Science and Pollution Research - The interaction between oil and stock market returns is one of the most important relationships that have a significant influence on the economy of...     

Potentially toxic elements in soil of the Khyber Pakhtunkhwa province and Tribal areas,Pakistan: evaluation for human and ecological risk assessment

Environmental Geochemistry and Health - Potentially toxic elements (PTEs) contaminations in the soil ecosystem are considered as extremely hazardous due to toxicity, persistence and bioaccumulative...