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1.
Environ Res ; 242: 117736, 2024 Feb 01.
Artigo em Inglês | MEDLINE | ID: mdl-38007083

RESUMO

Environmental contamination is a global challenge that impacts every aspect of ecosystem. The contaminants from anthropogenic or industrial trash continually recirculate into the environment, agricultural land, plants, livestock, and ultimately into humans by way of the food chain. After an increase in human and farmland animal deaths from illnesses due to contaminated drinking water, toxic metal water poisoning has remained a global concern. Diverse environmental and enforcement organisations have attempted to regulate the activities that serve as precursors to these heavy metals which have been proven ineffective. These unnecessary metals have severely hampered most biological processes. The presence of hazardous metals, which are harmful at extremely high levels and have a negative effect on the health of living bodies generally degrades the nutritional value of water. In order to evaluate the heavy metals (Cu, Ni, and Fe) toxicity of groundwater in pri-urban areas, the current study was conducted that have been considered as advance solution to tackle climate change which influence coastal ecosystem. Additionally, the impacts of soil and plant (spinach and brassica) contamination from groundwater were evaluated. The heavy metals were examined in the soil and groundwater samples (Pb, Fe and Ni). While Fe concentrations in water samples were found to be high as 1.978 mg/L as compared to Ni and Cu values low. According to WHO guidelines, the mean value of Fe exceeds the limit value. Similarly, Cu had a higher mean value (0.7 mg/L) in soil samples than other metals (Ni and Fe). In comparison to Ni and Cu, the Fe concentrations in spinach and brassica plants samples are greater, at 17.2 mg/L and 3.22 mg/L, respectively. The possible effects of metal poisoning of groundwater and plants on human health have been assessed using the Hazard Quotient (HQ), Evaluated Daily Intake (EDI), and Incremental Life Time Cancer Risk formulas (ILTCR). When drinking Ni-contaminated water, humans are more at risk of developing cancer (0.0031) than Fe and Cu. Metal concentrations in water and brassica showed substantially more scattered behaviour on the plot and no meaningful relationship, although PCA and masked matrix correlation showed a fair association between Ni and Cu in brassica (r2: 0.46) and Fe and Ni in spinach (r2: 0.31). According to the study's findings, it is anticipated that special management and groundwater monitoring will be needed in the examined area to reduce the health risks related to drinking water that has been contaminated with metals.


Assuntos
Água Potável , Metais Pesados , Neoplasias , Poluentes do Solo , Animais , Humanos , Monitoramento Ambiental/métodos , Ecossistema , Poluentes do Solo/análise , Metais Pesados/toxicidade , Metais Pesados/análise , Resíduos Industriais/análise , Solo , Medição de Risco
2.
Cureus ; 15(9): e44641, 2023 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-37799252

RESUMO

Each country's healthcare system has a different structure and functioning designed to meet the needs of its people utilizing the available resources. Due to ever-growing population needs and constantly emerging public health problems, it is vital for any healthcare system to be ready to adapt, recognize its limitations, and improve its flaws by learning from other healthcare models across the globe. In this article, we analyzed the significant challenges faced by Pakistan's healthcare system (PHS) and the first comprehensive initiative taken for universal health coverage in Pakistan. Inequitable distribution of resources, inadequate healthcare spending, non-adherence to preventative healthcare and brain drain are the major problems in the PHS. On the other hand, the recently introduced universal health coverage initiative, the Sehat Sahulat Program (SSP), can be considered one of the biggest achievements of the country's healthcare system.

3.
Environ Sci Pollut Res Int ; 28(29): 38774-38791, 2021 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-33742378

RESUMO

Diffuse pesticide pollution through tobacco fields is a serious threat to both natural integrities and living beings because tobacco is known as a pesticide-intensive crop. Upsurge in the knowledge of detrimental impacts caused by organochlorine pesticides (OCPs) has made them a burning issue particularly in developing countries. Pakistan is a country famous for its agro-based economy and simultaneously is the second most significant pesticide consumer in South Asian countries. The studied area is tobacco hub of the country. Thus, the present work is aimed to investigate the contamination profile that highlights the ecological and health risk posed by OCPs in River Barandu, located in the proximity of tobacco farming region. ΣOCP levels in sediments ranged between 32.918 and 98.810 ng/g and in water between 0.340 and 0.935 µg/L. Hexachlorocyclohexanes (HCHs) and heptachlor were the most prevailing pesticides in both matrices of the river. Isomeric composition of DDTs and HCHs highlighted that the ß-HCH and p,p'-DDT were dominant isomers in water, while α-HCH and p,p'-DDT in sediment compartment. Enantiomeric compositions of HCH and DDT indicate both recent and historic uses of these compounds in the area. Indirect contamination through nearby tobacco clusters has been depicted through spatial analysis. Ecological risk assessment based upon the risk quotient (RQ) method revealed that α-endosulfan, dieldrin, heptachlor, and ∑HCHs represent a very high level of ecological risks. The OCPs' lifetime carcinogenic and non-carcinogenic health risks associated with dermal exposure to river's water were considered nominal for surrounding populations. However, detailed ecological and health risk studies are recommended considering the bio-accumulating nature of these contaminants in the food chain.


Assuntos
Hidrocarbonetos Clorados , Praguicidas , Poluentes Químicos da Água , Agricultura , China , Monitoramento Ambiental , Sedimentos Geológicos , Hidrocarbonetos Clorados/análise , Paquistão , Praguicidas/análise , Medição de Risco , Rios , Nicotiana , Poluentes Químicos da Água/análise
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