We could include much stricter air quality standards. Our knowledge of air pollution has increased greatly over the past few years, as well as our understanding of various pollutants and the interactions between them. We could set high Canada-wide standards that are in keeping with the best standards, such as those suggested by the World Health Organization.
In addition to having standards, you also have to make sure that they are being met. It is therefore important that the act contains ways of ensuring that the standards are being met and that we have the means to check this. There also has to be a way of following up with consequences if ever the standards are not met by certain stakeholders.