Environmental issues in Syria Attacks on oil refineries can cause oil fires which release harmful chemicals into the air, such as sulfur dioxide, nitrogen dioxide, carbon monoxide and polycyclic aromatic hydrocarbons (PAHs). The sulphur and nitrogen compounds are linked to acid rain which can have dire impacts on vegetation as well as cause soil acidification. PAHs persist in the environment for long periods of time and are known carcinogens. Syria also extracts heavy crude oil, which generally has a higher proportion of noxious substances, including heavy metals, making it especially dangerous when these substances seep into the soil. Syria has two oil refineries. The
Singapore Green Plan 2012 main pollutants such as sulphur dioxide, oxides of nitrogen, carbon monoxide, ozone and respirable suspended particles. ===Prevention & Monitoring= Malaysia very big lorhreferred to the National Environment Agency (NEA) for evaluation at the planning stage to ensure that sufficient pollution control measures are in place before implementation. Besides monitoring individual polluters, NEA also checks the ambient air quality for signs of pollution so actions may be taken to prevent any problem from worsening. Inspections on industrial and trade premises are also conducted on a regular basis to ensure that environmental regulations, such as the Environmental Protection & Management Act (Air