نتایج جستجو برای: ecological values

تعداد نتایج: 599914  

Sobhanardakani, Soheil, Hosseini, Nayereh Sadat ,

Background & Objective: The road traffic has become one of the main sources of metal pollution and could affect roadside soils. Therefore, this study was conducted to assess the pollution and toxicity potential of Pb, Cd, Cr and Ni in surface soils along some roads of city of Hamedan in 2019. Materials & Methods: In this descriptive cross-sectional study, a total of 63 surface soil samples were...

Journal: :Industrial health 2013
Emilia Paba Giovanna Tranfo Federica Corsetti Anna Maria Marcelloni Sergio Iavicoli

Assessment of exposure to airborne endotoxins has been studied for several years, especially in occupational environments, but a large number of procedures are used for sampling and analysis. This lack of standardization makes it very difficult to compare results and set internationally accepted threshold limit values (TLVs) or occupational exposure limits (OELs) for endotoxin exposure. This pa...

Journal: :Ecological Indicators 2021

Abstract We introduce and provide a new data-set of species-specific ecological indicator values (alternative ‘Ellenberg values’ for climatic variables, light, moisture, soil reaction/pH, salinity, nitrogen phosphorus plus response to management disturbance), physiological reproductive traits (including symbionts, phenology, pollinators, nectar production, seed properties), indices relevance co...

ژورنال: سلامت و محیط زیست 2020

Background and Objective: Application of sewage sludge contaminated with heavy metals may cause health and ecological concern. Ecological risk and heavy metals content of sewage sludge from wastewater treatment plants of East Azerbaijan province were evaluated in the present study. Materials and Methods: Nine composite samples were taken and analyzed for heavy metals. The geo-accumulation inde...

Journal: :Water 2021

Wetlands are a critical part of natural environments that offer wide range ecosystem services. In urban areas, wetlands contribute to the livability cities through improving water quality, carbon sequestration, providing habitats for wildlife species, reducing effects heat islands, and creating recreation opportunities. However, maintaining in areas faces many challenges, such as reduction hydr...

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