BACKGROUND It has been widely demonstrated that air pollution can affect human health and that certain pollutant gases lead to adverse obstetric outcomes, such as preeclampsia and fetal growth restriction. OBJECTIVES We evaluated the influence of individual maternal exposure to air pollution on placental volume and vascularization evaluated in the first trimester of pregnancy. METHODS This ...

Environmental pollution control is one of the most important goals in pollution risk assessment today. In this sense, modern and precise tools that allow scientists to evaluate, quantify and predict air pollution are of particular interest. Monitoring atmospheric particulate matter is a challenge faced by the European Union. Specific rules on this subject are being developed (Directive 2004/107...

This paper demonstrates the advantage of combining a ranked output from a fulltext index and another from an index generated using generic summary texts. Our main ndings are as follows: (1) The combination of a fulltext-based run and a summary-based run can signi cantly outperform either alone, especially when the fulltext evidence is emphasized. (2) The primary role of the summary index in the...

During construction, a large number of resources are consumed; concurrently, amount greenhouse gas is emitted, which contributes to air pollution. There exist close interactions among construction regions. This study examined the main economy-resources-environment indexes associated with China’s industry, embodied in international trade based on Eora database, by using input-output model. It in...

background: groundwater nitrate pollution is an important environmental problem in water resources management. in this regard, specific measures aiming at prevention of water pollution will be helpful to managers and decision-makers. identification of aquifers’ vulnerable areas and determination of groundwater protection zones using most widely used models, such as drastic and cd, are one of th...

Abstract The Yellow River Estuary (YRE) and adjacent Laizhou Bay (LB) encounter eco-environmental risks caused by heavy metals (HMs) pollution. Here magnetic measurements were performed on 239 surface sediment samples from the YRE LB to establish a rapid effective method for detecting HMs. Magnetite, maghemite, hematite coexist in sediments. distributions of minerals are dominated sources (Yell...

Investigation of various species lichen as biomonitors air pollutants deposition and evaluation element pollution were aimed. Maximum accumulation was 43.9±2.1 mg/kg in X. somloensis. Strontium quite high. Percentages strontium for L.pulmonaria, C.furcata, U.longissima, X.somloensis, F.caperata between 58% 78% indicating the efficient strontium. Lichens also accumulated strategically important ...

The spatial distribution pattern of buildings is an entry point for controlling the diffusion pollution particles at urban structure scale. In this study, we adopted ordinary kriging interpolation and other methods to study PM2.5 constructed indexes based on building patterns reveal influence concentration across area different elevations. present suggests that: (1) Topographic elevation import...

In recent years, the environmental pollution generated by light has become increasingly serious, and indeed, inefficient unnecessary artificial sources have exerted a lot of negative effects on human activities natural environment. Therefore, it is great importance to detect evaluate risk level in region, specifically deal with improve region. Based global entropy weight method, TOPSIS BP (back...