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81.
Impact of urban air pollution has variety of focuses such as urban ecology, human health, economy, etc. But human health is
always given priority. Air pollution is threat to the lives of people living in big cities of Pakistan. In Lahore only there
die 1,250 people annually because of air pollution. A strong correlation exists between urban air pollution and human health
in Lahore. Growth of COPD is highest among other air pollution borne diseases. Existing mass transit system (one of driving
forces behind motor vehicular emission) in Lahore due to frequent stoppages, entering and exit in flow of traffic causes excess
discharge of motor vehicular carbon monoxide (CO) which is a hazardous to human health. Quantification and enumeration of
this discharge is essential for environmental management. The paper is an attempt to highlight human health effects of urban
air pollution through correlation and regression analysis. Further it is focused upon quantifying excess motor vehicular carbon
monoxide through application of simplified mobile emission model. In light of results emission control measures are recommended. 相似文献
82.
Bukhari Syed Asad Hussain Wang Runfeng Wang Wei Ahmed Imrul Mosaddek Zheng Weite Cao Fangbin 《Environmental science and pollution research international》2016,23(18):18229-18238
Environmental Science and Pollution Research - Greenhouse hydroponic experiments were carried out using three different heavy metal accumulation tobacco genotypes to evaluate how different... 相似文献
83.
Ullah Sana Ahmad Waheed Majeed Muhammad Tariq Sohail Sidra 《Environmental science and pollution research international》2021,28(47):66772-66786
Environmental Science and Pollution Research - This paper examines the relationship between deagriculturalization, economic growth, and CO2 emissions in Pakistan from the period 1975 to 2018 by... 相似文献
84.
Irshad Sana Xie Zuoming Mehmood Sajid Nawaz Asad Ditta Allah Mahmood Qaisar 《Environmental science and pollution research international》2021,28(15):18870-18892
Environmental Science and Pollution Research - Arsenic (As) bioremediation has been an economical and sustainable approach, being practiced widely under several As-contaminated environments.... 相似文献
85.
Husain Tahir Safdar Kousar Shazia Ahmed Farhan Rizwan Ullah Muhammad 《Environmental science and pollution research international》2021,28(35):47932-47941
Environmental Science and Pollution Research - Air pollution brings uncountable serious influences on human life during the last decade. This study is an attempt to compare economic liberalism with... 相似文献
86.
Jan Amin Ullah Hadi Fazal Shah Abdullah Ditta Allah Nawaz Muhammad Asif Tariq Muhammad 《Environmental science and pollution research international》2021,28(32):43417-43430
Environmental Science and Pollution Research - Soil pollution due to potentially toxic elements is a worldwide challenge for health and food security. Chelate-assisted phytoextraction along with... 相似文献
87.
Aslam Bilal Hu Jinsong Majeed Muhammad Tariq Andlib Zubaria Ullah Sana 《Environmental science and pollution research international》2021,28(31):41923-41936
Environmental Science and Pollution Research - Since the nonlinear ARDL approach is introduced in advanced econometric, some old relationships are getting new empirical attention. Therefore, we... 相似文献
88.
Cutoff grade specifies the available supply of metallic ore from an open pit mine to the multiple processing streams of an open pit mining complex. An optimal cutoff grade strategy maximizes the net present value (NPV) of an open pit mining operation subject to the mining, processing, and marketing/refining capacity constraints. Even though, the quantities of material flowing from the mine to the market are influenced by the expected variation in the available metal content or inherent uncertainty in the supply of ore, the majority of cutoff grade optimization models not only disregard this aspect and may lead to unrealistic cash flows, but also they are limited in application to an open pit mining operation with single processing facility. The model proposed herein determines the optimal cutoff grade policy based on a stochastic framework that accounts for uncertainty in supply of ore to the multiple ore processing streams. An application on a large-scale open pit mining operation develops a unique cutoff grade policy along with a portfolio of mining, processing, and marketing/refining rates. Owing to the geological uncertainty, the approach addresses risk by showing a difference of 14% between the minimum and maximum production rates, cash flows and NPV. 相似文献
89.
Yingshuai Liu Yunshan Ge Jianwei Tan Mingliang Fu Asad Naeem Shah Luqiang Li Zhe Ji Yan Ding 《环境科学学报(英文版)》2018,30(3):83-91
Maritime transport has been playing a decisive role in global trade. Its contribution to the air pollution of the sea and coastal areas has been widely recognized. The air pollutant emission inventories of several harbors in China have already been established. However,the emission factors of local ships have not been addressed comprehensively, and thus are lacking from the emission inventories. In this study, on-board emission tests of eight diesel-powered offshore fishing ships were conducted near the coastal region of the northern Yellow Bo Sea fishing ground of Dalian, China. Results show that large amounts of fine particles( 0.5 μm, 90%) were found in maneuvering mode, which were about five times higher than those during cruise mode. Emission rates as well as emission factors based on both distance and fuel were determined during the cruise and maneuvering modes(including departure and arrival). Average emission rates and distance-based emission factors of CO, HC and PM were much higher during the maneuvering mode as compared with the cruise mode. However, the average emission rate of Nitrous Oxide(NOx) was higher during the cruise mode as compared with the maneuvering modes. On the contrary, the average distance-based emission factors of NOxwere lower during the cruise mode relative to the maneuvering mode due to the low sailing speed of the latter. 相似文献
90.
Xianjin Tang Biao Zeng Muhammad Zaffar Hashmi Dongyan Long Binbin Yu Naveed Ullah 《Chemistry and Ecology》2014,30(3):245-251
The emerging issue of electronic wastes (e-waste) and the associated environmental problems has gained considerable attention from the scientific community in recent decades. In the present study, the levels of polybrominated diphenyl ethers (PBDEs) and polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) in the surface soil obtained from the Taizhou e-waste recycling area of China were investigated. Also the correlation among these chemicals and previously published data of heavy metals, polycyclic aromatic hydrocarbons, and polychlorinated biphenyls was analysed. We determined that the pollution levels of eight PBDEs congeners were serious, ranging from 27.9 to 3128.4 μg/kg. The concentration of PCDD/Fs was in the range of 218.3–3122.2 pg/g with a mean value of 659.5 pg/g. The PBDEs were not well-correlated with organic pollutants (PAHs and PCBs) in soil, whereas PCDD/Fs exhibited a significant positive correlation with the PCBs. The higher levels of persistent organic pollutants may pose potential adverse effects to soil quality and human beings and needs to be properly managed and remediated. 相似文献