This study explores the stricter cap on sulfur content in marine fuel implemented seas north-western Europe 2015. The analysis is built a difference-in-differences design that compares outcomes coastal areas before and after tightening of cap, to control over same period. results show new reduced annual average ambient concentrations dioxide ( S O 2 ) by 22 percent levels fine particulate matte...

The interest in aerosol contamination of aircraft passenger cabins has increased since the onset COVID-19 pandemic. Mathematical models have been developed to help describe how an behaves a closed space. number infectious particles inhaled is scientific because it can be related risk getting ill from pathogen. data required calculate these results often difficult obtain real world settings. In ...

This work presents a stochastic outer approximation algorithm to solve air pollution control problem while minimizing the control costs which thereby occur. These air quality standards give rise to an infinite number of constraints and this is a semi-infinite programming problem.

While ambient air pollution levels in excess of prescribed health standards are generally unacceptable, the exceedance is even more serious in areas where people reside. Vulnerability caused by poverty, disease, lack of education, and poor living conditions exacerbates the problem. Air quality management plans identify prioritized strategies for improved air quality independent of consideration...

Wildland fires release large amounts of particulate matter (PM), CO, S02, NO,, and Volatile Organic Carbon (VOC), which can cause serious consequence of regional and local air quality (Sandberg et al., 1999). All these components except VOC are the principal pollutants whose emissions are subject to the National Ambient Air Quality Standards (NAAQS) established by the U.S. Environmental Protect...

We examine the effect of air pollution on school absences using administrative data for elementary and middle school children in 39 of the largest school districts in Texas merged with air quality information maintained by the Environmental Protection Agency. We address potentially confounding factors with a difference-in-difference-in-differences strategy that controls for persistent character...

BACKGROUND Air pollution in Tehran is widely recognized as a serious environmental challenge, posing significant threats to the health of the resident population. Improving air quality will be difficult for many reasons, including climate and topography, heavy dependence on motor vehicles for mobility, and limited resources to reduce polluting emissions. Consequently, it is useful to have infor...