BACKGROUND We quantified the air quality benefits of a smoke-free workplace law in Boston Massachusetts, U.S.A., by measuring air pollution from secondhand smoke (SHS) in 7 pubs before and after the law, comparing actual ventilation practices to engineering society (ASHRAE) recommendations, and assessing SHS levels using health and comfort indices. METHODS We performed real-time measurements ...

The inhalable particles from vehicle exhaust can cause DNA damage to exposed organisms. Research on DNA damage is primarily focused on the influence of specific pollutants on certain species or the effect of environmental pollution on human beings. To date, little research has quantitatively studied the relationship between roadside pollution and DNA damage. Based on an investigation of the roa...

BACKGROUND Given the importance of physical activity to well-being, there is a need to encourage people to be physically active year-round. At the same time, many people are vulnerable to adverse health effects from air pollution, especially on smog alert days. This study was undertaken to determine when air pollution levels tend to be lowest so that the public can modify strenuous outdoor acti...

Air pollution has become an essential issue in environmental protection. The Quality Index (AQI) is often used to determine the severity of air pollution. When AQI reaches red level, proportion asthma patients seeking medical treatment will increase by 30% more than usual. If can be predicted advance, benefits early warning achieved. In recent years, a scholar proposed α-Sutte indicator which s...

Along with rapid urbanization and industrialization processes, many developing countries are suffering from air pollution. Air quality varies non-linearly, the effective range of an air quality monitoring station is limited. While there are seldom air quality monitoring stations in cities, it is difficult to know the exact air quality of everywhere. How to obtain the air quality fast and conven...

Air quality is indicated by the Quality Index (AQI). Prediction or classification of AQI an important research issue because it can impact many factors, such as environment, health, transportation, agriculture, plantations, tourism, and education. The purpose this study to predict using a decision tree. results calculating performance tree method that implements discretization technique show ve...