In the second quarter of 2021, companies at Capuava Petrochemical Complex (CPC, Santo André, Brazil) carried out a 50-day scheduled shutdown for maintenance and installation new industrial equipment. This process resulted in severe uncontrolled emissions particulate matter (PM) volatile organic compounds (VOCs) densely populated residential area (~3400 inhabitants/km2). VOCs can be emitted dire...

air pollution is one of the most challengeable problems in the asalouyeh zone. in order to reduce the air pollutants emission and their effects it is necessary to recognize the amount and spatial dispersion of air pollutants. hence in this paper, evaporative losses of the stored liquids from 16 tanks of an oil company in asalouyeh zone, are determined using tanks 4.0.9d and then dispersion of v...

This report examines performance of four models with two compilers on the Intel Pentium 4 Xeon processor using the PAPI performance event library to collect performance counter values. The intent is to identify performance metrics that indicate where performance inhibiting factors occur when the codes execute. Results for operations, instructions, cycles, cache, table lookaside buffer misses, b...

Currently, within the National Emissions Inventory (NEI), airport, including aircraft, emissions are estimated at the county level as area sources and are represented only in the surface layer of air quality models. In reality, however, aircraft release their emissions both on the surface and while airborne. Therefore, in order to provide a realistic representation of all emissions from aircraf...

In recent years, large cities in China face severer air pollution due to motor vehicle emissions. Accurate high-resolution emission inventories are essential as they are commonly used in air quality dispersion modeling analysis to determine impacts from motor vehicle emissions and assess the effectiveness of control strategies. This paper presents a case study based on motor vehicle emissions i...

Two events during the last decade had major environmental repercussions in Almadén town (Spain). First it was the ceasing of activities in the mercury mine and metallurgical facilities in 2003, and then the finalization of the restoration works on the main waste dump in 2008. The combination of both events brought about a dramatic drop in the emissions of gaseous elemental mercury (GEM) to the ...