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  2. Environmental issues in Indonesia - Wikipedia

    en.wikipedia.org/wiki/Environmental_issues_in...

    The 2010 Southeast Asian haze was an air pollution crisis which affected many Southeast Asia countries such as Indonesia, Malaysia and Singapore during the month of October in 2010. [ 25 ] This occurred during the dry season in October when forest fires were being illegally set off by Indonesian smallholders residing in the districts of Dumai ...

  3. 2019 Southeast Asian haze - Wikipedia

    en.wikipedia.org/wiki/2019_Southeast_Asian_haze

    Forest fires in Indonesia cause the trans-boundary haze in Indonesia, Malaysia, and Singapore almost every year. These fires clear land for palm oil plantations , and are known to be started by smallholding subcontractors who supply large companies that claim to discourage the practice but admit the chain of custody is a "complicated web."

  4. Air pollution - Wikipedia

    en.wikipedia.org/wiki/Air_pollution

    Air pollution can occur naturally or be caused by human activities. [4] Air pollution causes around 7 or 8 million deaths each year. [5] [6] It is a significant risk factor for a number of pollution-related diseases, including heart disease, stroke, chronic obstructive pulmonary disease (COPD), asthma and lung cancer.