Plug-in hybrid electric vehicles (PHEVs) have been promoted as a potential technology to reduce emissions of greenhouse gases and other pollutants by using electricity instead of petroleum, and byimproving electric system efficiency by providing vehicle-to-grid (V2G) services. We use an electric power system model to explicitly evaluate the change in generator dispatches resulting from PHEV dep...

Mexico City’s bus rapid transit (BRT) network, Metrobus, was introduced in an attempt to reduce congestion, increase city transport efficiency and cut air polluting emissions. In June 2005, the first BRT line in the metropolitan area began service. We use differences-indifferences and quantile regression techniques in undertaking the first quantitative policy impact assessment of the BRT system...

C is in the midst of the largest and fastest period of economic growth in global history. While this growth at 9 10% GDP per year has lifted hundreds of millions of people from poverty, the all out prioritization of economic prosperity has created serious air and water pollution that are affecting the health of the local population, and also have increasing global climate impacts. A World Healt...

Abstract This work constructed a divided diaphragm seawater electrolysis system with two tandem packed towers for the synergistic removal of NOx and SO2. The first tower was mainly used to oxidize NO SO2 by AC (active chlorine), second further absorb NOx. factors affecting on removal, including ACC chlorine concentration), pH value, initial concentration temperature in oxidation were investigat...

A facile method is developed for the large-scale growth of hierarchical transition-metal (Cu, Fe, and Ni) vanadate nanosheets on corresponding metal mesh as supports. The hierarchical transition-metal vanadate nanosheets were in situ grown on the metal meshes through an orientational etching process and simultaneous nucleation and growth process. Interestingly, the morphologies of the vanadate ...

The present study aims at developing a forecasting model to predict the next year’s air pollution concentrations in the atmosphere of Iran. In this regard, it proposes the use of ARIMA, SVR, and TSVR, as well as hybrid ARIMA-SVR and ARIMA-TSVR models, which combined the autoregressive part of the autoregressive integrated moving average (ARIMA) model with the support vector regression technique...

Emissions in East Asia for 1993 by administrative units and source types are estimated to support regional emission assessments and transport modeling studies. Total emission of SOx, NOx, soil NOx, N2O, and NH3 are 24,150 kton/year, 12,610 kton/year, 1,963 kton/year, 908kton/year, and 8,263 kton/year, respectively. China’s emission contribution is the highest for every species. The area sources...

Air pollution due to anthropogenic activities is currently one of the most important problems faced worldwide. This study aimed determine associations between air quality and spatial, meteorological, factors while evaluating using stress index (ASI) daily (DAQx) scale. The annual mean levels CO, NOx, O3, PM 2.5, PM10 SO2 in region were 718.6, 39.5, 44.4, 25.5, 51.3, 9.9 ?g/m3, respectively. Whi...

When burning fuel in grate furnaces, supplying the right amount of air to them is as important method supply. In a furnace with fixed grate, supply primary determined by distribution supplied stream over time, and movable said involves along active length grate. The need account for attributable complex processes that occur during combustion process. paper describes experimental studies aimed a...