Higher than normal levels of carbon monoxide can be with dangerous for people with cardiovascular disease. While healthy people are able to tolerate moderate levels of carbon monoxide in the air, those with cardiovascular disease, such as angina should avoid exertion and heavy traffic during smog alerts for this pollutant. High levels of particulate matter can also be dangerous for people with heart disease. People with respiratory disease are especially sensitive to particulate matter, sulfer dioxide and nitrogen dioxide. Outdoor activites may need to be limited or curtailed during smog alerts for people with respiratory disease, such as asthma, while levels of these pollutants are high.
Children are more sensitive than adults to air quality .
During times when the air quality is unhealthy, outdoor activity may need to be limited. When the air quality is hazardous, children may need to be kept indoors. Please read it.