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81.
Tasneem G. Kazi Faheem Shah Haffeezur Rehman Shaikh Hassan Imran Afridi Afzal Shah Naeemullah Sadaf Sadia Arain 《Environmental science and pollution research international》2014,21(4):3021-3030
Prenatal and early-life exposure to lead (Pb) is hypothesized to have adverse effects on childhood health. The aim of this study was to evaluate the prenatal exposure to Pb and its adverse effects on mothers and their infants who are residents of industrial (exposed) and domestic areas (referents) in Karachi, Pakistan. The biological samples (scalp hair and blood) of mother–infants pairs were analyzed for Pb levels by atomic absorption spectrometry after microwave-assisted acid digestion method. The Pb levels in scalp hair and blood samples of exposed mothers were found in the range of 7.52–8.70 μg/g and 115–270 μg/L, respectively, which were significantly higher than those values obtained for referent mothers (p?<?0.001). The Pb levels in the blood (umbilical cord) and hair of neonates of exposed mother that were found in the range of 83–178 μg/L and 4.95–7.23 μg/g, respectively, were significantly higher than the obtained values of referent neonates (p?>?0.001). The correlation between maternal and cord blood of both groups was found in the range of 0.708–0.724 (p?<?0.01). It was observed that there were higher Pb burdens in exposed mothers and their infants as compared to referent mothers–neonates. 相似文献
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Atif Jahanger Ashar Awan Ahsan Anwar Tomiwa Sunday Adebayo 《Natural resources forum》2023,47(3):484-503
Electricity consumption is a crucial factor in the environmental pollution process, and therefore, its impact needs to be carefully considered by policymakers. This study investigates the relationship between energy consumption, electricity generation, natural resource utilization, and environmental pollution in BRICS nations, which have a substantial share in global resource consumption. To this end, we employed a novel methodology, namely the Method of Moment Quantile Regression (MMQR), for the time period between 1990 and 2018, within the framework of the Environmental Kuznets Curve (EKC) theory. The study's outcome shows that natural resources and renewable energy are efficacious and significant in curbing environmental degradation among the sample countries. The investigation reveals a positive correlation between electricity consumption and environmental degradation, thereby highlighting this vital resource's role in exacerbating the BRICS nations’ ecological footprint. The findings from this research can provide crucial insights for policymakers to achieve sustainable development and carbon neutrality in these countries. 相似文献
84.
Ahmad Munir Ahmed Naseer Jabeen Maria Jabeen Gul Qamar Shoaib Chandio Abbas Ali Rehman Abdul Rauf Abdul 《Environmental science and pollution research international》2020,27(31):38937-38950
Environmental Science and Pollution Research - This study investigates the heterogeneous causal linkages between urbanization, the intensity of electric power consumption, water-based pollutant... 相似文献
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Heavy metals from soil and domestic sewage sludge and their transfer to Sorghum plants 总被引:1,自引:0,他引:1
M. K. Jamali T. G. Kazi M. B. Arain H. I. Afridi N. Jalbani A. R. Memon A. Shah 《Environmental Chemistry Letters》2007,5(4):209-218
We studied the mobility and transport of heavy metals such as Cu, Zn, As, Cd, Cr, Ni, and Pb, from soil and soil amended with
sewage sludge to sorghum plants. The total and ethylenediaminetetraacetic acid (EDTA) extractable heavy metals in agricultural
soil and untreated domestic sewage sludge (DWS) samples were determined. The correlation between the total and extractable
metals in soil and sewage sludge was investigated. The total and extractable heavy metals in soil, sewage sludge and sorghum
grain were analysed by flame and electro thermal atomic absorption spectrometer (FAAS/ETAAS), after digestion in microwave
oven. Statistically good correlations were obtained between the total contents of all heavy metals and their respective extractable
fractions in soil and domestic wastewater sludge. Transfer factors of all heavy metals from domestic sewage sludge to sorghum
grains were determined. 相似文献
87.
Abstract The rate and product composition during photooxidation of aromatic hydrocarbons (toluene, o‐, m‐, p‐xylene and cumene) dissolved in n‐hexane and spread as a liquid film on water is reported. The photo degradability of these chemicals is 10–20%. The products identified are oxygenated aromatic compounds. It is observed that the absorption bands of the compounds under investigation depend upon the partial pressure of dissolved oxygen and these bands extend up to 290 nm. The new absorption band around 290 nm is probably due to broadening of 1Lb bands which is responsible for direct photolysis. stream. We have been especially interested in investigating the rate of disappearance and distribution of main oxidation products in two phases. Besides that an attempt has been made to throw some light on the reaction mechanism. 相似文献
88.
Zafar Fatmi Imran Naeem Abbasi Mubashir Ahmed Ambreen Kazi Fujio Kayama 《Environmental geochemistry and health》2013,35(3):341-346
Prior surveys conducted have found higher proportion of arsenic-contaminated wells in villages along river Indus in Pakistan. This study aims to determine the prevalence of arsenicosis skin lesions among population exposed to higher exposure in taluka Gambat district Khairpur in Sindh. The cross-sectional survey was conducted from August 2008 to January 2009 among 610 households. A total of 707 water sources (hand pumps/wells) were tested from the villages of union councils of Agra and Jado Wahan for arsenic levels with Quick rapid arsenic field test kits. A total of 110 households exposed to arsenic levels >50 ppb were identified. Case screening for arsenic skin lesions was performed for 610 individuals residing in these 110 high-risk households. Information regarding household and socio-demographic characteristics, height and weight measurements and arsenic exposure assessment were collected. Physical examinations by trained physicians were carried out to diagnose the arsenic skin lesions. After data cleaning, 534 individuals from all age groups were included in the final analysis which had complete exposure and outcome information. Overall prevalence of arsenicosis skin lesions was 13.5 % (72 cases). Of the 534 individuals, 490 (91.8 %) were exposed to arsenic levels of ≥100 ppb in drinking water (8.2 % to >50–99 ppb, 58.6 % to 100–299 ppb, 14.6 % to 300–399 ppb and 18 % to ≥400 ppb). Prevalence rate (per 100 population) of arsenicosis was highest at arsenic levels of 100–199 ppb (15.2 cases) followed by ≥400 ppb (13.5 cases) and 300–399 (12.8 cases). Prevalence rate was higher among females (15.2) compared to males (11.3). Our study reports arsenicosis burden due to exposure to higher arsenic levels in drinking water in Pakistan. Exposure to very high levels of arsenic in drinking water calls for urgent action along river Indus. Prevalence of skin lesions increases with increasing arsenic levels in drinking groundwater. Provision of arsenic-free drinking water is essential to avoid current and future burden of arsenicosis in Pakistan. 相似文献
89.
Usman Muhammad Jahanger Atif 《Environmental science and pollution research international》2021,28(28):37292-37310
Environmental Science and Pollution Research - This study investigates the heterogeneous effects of remittance inflows, institutional quality, foreign direct investment, energy consumption,... 相似文献
90.
Hafeez Muhammad Ullah Farman Khan Muhammad Musa Wang Zhangqian Gul Hina Li Xiaowei Huang Jun Siddiqui Junaid Ali Qasim Muhammad Wang Rui-Long Imran Muhammad Assiri Mohammed A. Rehman Muzammal Fahad Shah Lu Yaobin 《Environmental science and pollution research international》2022,29(40):60198-60211
Environmental Science and Pollution Research - Many species of devastating insect pests have acquired a high degree of resistance to insecticides in the field during the last few decades.... 相似文献