BACKGROUND There is growing concern of health effects of exposure to pollutant mixtures. We initially proposed an Environmental Risk Score (ERS) as a summary measure to examine the risk of exposure to multi-pollutants in epidemiologic research considering only pollutant main effects. We expand the ERS by consideration of pollutant-pollutant interactions using modern machine learning methods. We...

In this work, the effect of external load on current and power generation, as well pollutant removal by microbial fuel cells (MFCs), has been studied step-wise modifying load. The changes included a direct scan, in which resistance was increased from 120 Ω to 3300 Ω, subsequent reverse decreased back Ω. reduction current, experienced when increasing resistance, maintained even scan decreased. R...

BACKGROUND Previous epidemiologic studies have considered the effects of individual air pollutants on birth outcomes, whereas a multiple-pollutant approach is more relevant to public health policy. OBJECTIVES The present study compared the observed effect sizes of prenatal fine particulate matter (PM2.5) and polycyclic aromatic hydrocarbons (PAH) (a component of PM2.5) exposures on birth outc...

The race for engine consumption and pollutant emission reduction requires engines development time reduction and optimisation. These problems bring engine test bed to become measuring systems more and more powerful and versatile. This test bed functionalities enrichment drives automation system evolutions. One of these is the integration of real time simulation execution in MORPHEE 2 which make...

Proposition O was created to help the City of Los Angeles comply with the Total Maximum Daily Load (TMDL) requirements under the Clean Water Act. In this study, the effectiveness of the Proposition O projects in Los Angeles River watershed was examined to show whether it achieves the goal of meeting water quality standards. Our analysis shows the most effective single project will remove at mos...

Situ Pangarengan is located in Cisalak Village, Sukmajaya District, Depok City, and function as a water catchment area. This study aims to identify activities that caouse pollution damage, analyze the quality status, determine pollutant load capacity provide recommendations for prevention control. The main cause of are from residential other activities. Parameters BOD, COD phosphate exceeded st...

in the current engineering practices, buildings are commonly designed for an effective lifetime of 50 years. this lifetime can increase the cost of buildings with short lifetimes and can reduce the safety level of buildings with large lifetimes. in this paper, a “service-life factor” has been defined. applying this factor into the nominal values of live, earthquake, wind, and snow loads, the ef...

Nitrate nitrogen pollution in groundwater can be understood from three viewpoints: generation sources, mobility, and elimination effects (natural purification effects). Alluvial fans are often utilized for farmland where nitrate fertilizer (pollutant source) may used. pollutants readily spread at alluvial two controlling factors pollutant mobility high: permeability hydraulic gradient of ground...

Outcomes from the 22nd meeting for Specialists in Air Pollution Effects on Forest Ecosystems "Forests under Anthropogenic Pressure--Effects of Air Pollution, Climate Change and Urban Development", September 10-16, 2006, Riverside, CA, are summarized. Tropospheric or ground-level ozone (O3) is still the phytotoxic air pollutant of major interest. Challenging issues are how to make O3 standards o...