نتایج جستجو برای: bioassessment

تعداد نتایج: 217  

Coal mining and related industry can increase heavy metals (HMs) concentrations in soil, atmosphere and wheat, thereby posing metal-associated human health risk via food ingestion.  In this study, 58 samples of soil, wheat, and dust were collected from Xuzhou coal mine eastern China, six kinds of HMs Pb, Cd, Cu, Zn, As and Cr were studied for their spatial distribution in wheat, enrichment in d...

2017
Matthew L. Bowser John M. Morton John Delton Hanson Dawn R. Magness Mallory Okuly

BACKGROUND By the end of this century, the potential climate-biome of the southern Kenai Peninsula is forecasted to change from transitional boreal forest to prairie and grasslands, a scenario that may already be playing out in the Caribou Hills region. Here, spruce (Picea × lutzii Little [glauca × sitchensis]) forests were heavily thinned by an outbreak of the spruce bark beetle (Dendroctonus ...

2013
Azizullah Azizullah Waheed Murad Muhammad Adnan Waheed Ullah Donat-Peter Häder

*Correspondence: Azizullah Azizullah, Department of Botany, Kohat University of Science and Technology, 26000 Kohat, Pakistan e-mail: [email protected] Pollution of aquatic environments with natural and anthropogenically produced substances is one of the major environmental problems of the world. In many countries the decreasing quantity of water coupled with its increasing usage in multipl...

Journal: :Frontiers in water 2021

Macroinvertebrate metrics are helpful tools for the assessment of water quality and overall aquatic ecosystem health. However, their degree sensitivity most reliable bioassessment program development very poorly studied in Togo. This study aimed to test calculated at family genus levels. A total 21 parameters macroinvertebrates' data were collected during three periods 20 sampling sites within ...

Journal: :Environmental monitoring and assessment 2010
Francis O Arimoro Wilhelmine J Muller

Ephemeroptera is an important group of insects used in the bioassessment and monitoring of freshwater bodies worldwide because of their relative abundance in a wide variety of substrates and their increasing chances of detecting pollution impacts. In this study, their faunistic composition and spatiotemporal variations in density and diversity in River Orogodo (Southern Nigeria) was investigate...

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