A report by North America’s environmental watchdog agency reveals an increase in the rates of childhood asthma in Canada. According to statistics one out of every ten children are ill with the respiratory diseases.
In Canadian children asthma is one of the most frequent protracted conditions. Asthma also afflicts the adults. This research is organized by federal government scientists bearing in mind the health of Canadian, American and Mexican children.
The characteristic features of the disease are chest pain and wheezing. It is common among the children in North America. Due to statistics about one million Canadian children suffer or have suffered from asthma.
Statistics from 2003 stated that Canadian boys aged 8 to 11 had asthma and 20% of them were diagnosed with the illness not earlier than in the late 1990s. About 13 per cent of children in the United States were suffering from asthma at some point in their lives.
Scientists are not aware of the distinct cause of asthma, but they claim it is related to quality of indoor and outdoor air.
Children are afflicted by the change of the air quality because their body systems develop and they take higher intakes of air. They are exposed to passive smoking, dust mites, pesticides, the fumes emitted by some plastics, and solvents volatile organic compounds. These as well as other chemicals may cause asthma to develop.
