What are some of the key emerging trends and challenges in the field of air pollution?

About the Air Quality Index ... The Air Quality Index (AQI) is a color-coded tool for reporting daily air quality. It provides simple information on local air ... Moderate — 51 to 100. Air quality is acceptable. However, there may be a risk for some people, particularly those who are unusually sensitive to air pollution. Nov 20, 2024 ... The AQI is an index for reporting daily air quality. It tells how clean or polluted the air is, and what associated health effects might be a ... No health impacts are expected when air quality is in this range. Green. Moderate, 51-100, Unusually sensitive people should consider limiting prolonged outdoor ... The Air Quality Index (AQI) is based on measurements of six pollutants: fine particles (PM 2.5 ), course particles (PM 10 ), ozone, sulfur dioxide, nitrogen ... Check the air quality index (AQI) at one of the websites listed in the answer to question 6 below. There are AQIs for several air pollutants. Sep 18, 2024 ... AQI values at or below 100 are considered satisfactory for almost everyone. When AQI values are above 100, air quality is unhealthy. The higher ... Oct 13, 2017 ... Note: Values above 500 are considered Beyond the AQI. Follow recommendations for the "Hazardous category." See additional information on ... ​​DEQ has updated its Air Quality Index to better serve the public and put more data at users' fingertips. The color-coded tool categorizes air quality at more ... About the Air Quality Index (AQI) · Good – Air quality is considered satisfactory, and air pollution poses little or no risk. · Moderate – Air quality is ...