there are also regional efforts to monitor air quality the asean specialised meteorological centre asmc for example was established in to enhance the capacities of meteorological services it is also responsible for monitoring and assessing land and forest fires and haze in the region as well as providing realtime air quality information from multiple stations in the region some countries in the region have national air quality standards covering at least some of the six main outdoor air pollutants fine pm and coarse pm particulate matter ozone nitrogen dioxide n and sulphur dioxide so table