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This study was designed to evaluate the degree of environmental contamination and possible exposure of pregnant women to toxic elements in seven selected areas of São Paulo State, Brazil. The overall median concentration of Mo in maternal blood was 0.53 μg L⁻¹, highly significant differences found between sites (p < 0.0001). Cd was found to be low overall - 0.09 μg L⁻¹ (0.01-0.58 μg L⁻¹) - with...

In this paper we study the impact of environmental pollution in an endogenous growth model with endogenous structural change. The paper allows for both horizontal and vertical innovations where newer technologies are less polluting compared to older ones. The analysis shows that the presence of environmental externalities stimulates structural change but reduces the growth rate of the economy. ...

In order to avoid environmental pollution and eliminate the need for using fertiliser, this study assessed for the first time the optimum performance of mature (in operation since 2011) vertical flow constructed wetlands in treating domestic wastewater (with and without hydrocarbon) and the subsequent recycling of the outflow to irrigate chillies (De Cayenne; Capsicum annuum (Linnaeus) Longum G...

We consider the problem of regulating an economy with environmental pollution. A regulation mechanism defines payments contingent on pollution emissions. The polluterpays mechanism requires that any agent compensates all other agents for the damages causes by his or her own emissions. It is the budget-balanced and efficient. It implements the unique welfare distribution that assigns non-negativ...

F Pesticide Contamination Prevention Act authorrzed the California Department of Food and Agrculture to modify w.es of pesticides in areas where they have leached through soil to groundwater (Connelly, 1985). Leaching of agriculhuaI chemicals has been shown to occur during recharge of groundwater whereby water moves from the surface through the soil profile to a groundwater aquifer (Wehtje et a...

BACKGROUND Liao River basin in Jilin Province is the place of origin of the Dongliao River. This study gives a comprehensive analysis of the vegetation coverage in the region and provides a potential theoretical basis for ecological restoration. METHODS The seasonal variation of vegetation greenness and dynamics based on the Normalized Difference Vegetation Index (NDVI) in major land cover ty...

The purpose of this research was to identify the variables that increase concern about the health, environmental contamination, and economic consequences of toxic substances in the environment. A mail survey was sent to a New York State sample, and a 66% response was obtained. Seven indices were developed from specific concerns about toxic substances in the environment including, among others, ...

We present new mathematical and geological models to assist civil protection authorities in the mitigation of potential oil spill accidents in the Eastern Mediterranean Sea. Oil spill simulations for 19 existing offshore wells were carried out based on novel and high resolution bathymetric, meteorological, oceanographic, and geomorphological data. The simulations show a trend for east and north...

INTRODUCTION Limited data exist on patient factors related to environmental contamination with Clostridium difficile. METHODS We evaluated the association between the functional status of patients with C. difficile infection (CDI) and environmental contamination with C. difficile. RESULTS Contamination of patient rooms was frequent and higher functional status was associated with contaminat...