conclusions our findings support a number of statistically significant positive associations between air pollutants and the number of ed visits for headache and migraine. background associations between ambient air pollution and emergency department (ed) visits for headache and migraine were examined in a multi-city study during the period of april 2004 to december 2011 in nine cities across on...

Due to the increasingly stringent standards, it is important to assess whether the proposed emission reduction will result in ambient concentrations that meet the standards. The Software for Model Attainment Test-Community Edition (SMAT-CE) is developed for demonstrating attainment of air quality standards of O3 and PM2.5. SMAT-CE improves computational efficiency and provides a number of advan...