Burning electronic waste releases a toxic cocktail of pollutants into the atmosphere that affects air quality, human health, and the environment. While open burning of e-waste is not a widespread practice in Australia, it remains a significant global problem, particularly in countries that receive exported e-waste for informal processing. Understanding these impacts helps Australian organisations appreciate why ensuring domestic, certified processing of their e-waste matters, and why the export of e-waste to countries with weak environmental controls is such a serious concern.
Why E-Waste Gets Burned
In informal recycling operations, burning is used as a crude method to recover valuable metals from electronic waste. Burning cables and wires melts away plastic insulation to expose copper wire. Open-air burning of circuit boards can loosen components and make precious metals more accessible. Burning casings and other plastic components reduces the volume of waste that needs to be managed. These methods are cheap and require no specialised equipment, which is why they persist in communities where formal recycling infrastructure is absent and economic alternatives are limited.
What Burning E-Waste Releases
The combustion of electronic materials generates a wide range of harmful air pollutants. Dioxins and furans are among the most toxic substances released when e-waste is burned. These persistent organic pollutants are produced when PVC plastics, brominated flame retardants, and other chlorinated or brominated materials in electronics are combusted at temperatures below those required for complete destruction (typically below 850 degrees Celsius). Dioxins are potent carcinogens and endocrine disruptors that persist in the environment and bioaccumulate in food chains.
Particulate matter (PM2.5 and PM10) is generated in large quantities from e-waste burning. Fine particulate matter penetrates deep into the lungs and can enter the bloodstream, causing respiratory disease, cardiovascular problems, and premature death. Communities near e-waste burning sites experience significantly elevated particulate matter concentrations.
Heavy metal vapours are released when metals in electronics are heated. Lead, mercury, cadmium, and chromium all become airborne during burning, creating inhalation risks for workers and nearby communities. Mercury is particularly concerning because it vaporises at relatively low temperatures and can travel long distances in the atmosphere before being deposited.
Polycyclic aromatic hydrocarbons (PAHs) are produced during the incomplete combustion of organic materials in electronics. Many PAHs are carcinogenic and contribute to respiratory disease. Hydrogen cyanide can be released when certain plastics, particularly those containing nitrogen-based compounds, are burned. This is acutely toxic and poses immediate danger to workers.
The Global Dimension
While Australia does not have significant open e-waste burning operations, the global trade in e-waste means Australian organisations are not entirely disconnected from this problem. E-waste that is exported from Australia, whether legally as second-hand goods or illegally as waste, may end up in informal processing operations where burning is common.
The Basel Convention restricts the export of hazardous waste from developed to developing countries, and Australia is a signatory. However, enforcement can be challenging, particularly when e-waste is misclassified as functional second-hand equipment. Ensuring your organisation’s e-waste is processed domestically through certified facilities is the most reliable way to ensure it does not contribute to air pollution through burning in another country.
Formal Processing Alternatives
Certified e-waste recycling facilities use controlled processes that avoid the air quality impacts of open burning. Mechanical shredding and separation processes physically separate materials without combustion. Smelting operations that do involve heat use enclosed systems with emission control equipment including filters, scrubbers, and thermal oxidisers. Plastics are processed through controlled recycling methods that recover materials without releasing toxic combustion products. And metals are recovered through hydrometallurgical processes (using chemical solutions) rather than pyrometallurgical methods (using heat), avoiding combustion emissions.
These controlled processes are more expensive than open burning, which is why they require the economic support of a functioning ITAD and recycling industry. When organisations pay for proper e-waste processing through their ITAD providers, they are funding the infrastructure that prevents the air quality impacts of informal burning.
Carbon Emissions from E-Waste Burning
In addition to toxic pollutants, burning e-waste releases greenhouse gases including CO2 from the combustion of carbon-based materials (plastics, circuit boards), black carbon (soot) which has a significant short-term warming effect, and other greenhouse gases from incomplete combustion. These emissions contribute to climate change alongside the local air quality impacts, adding another dimension to the environmental case against informal e-waste processing.
What Organisations Can Do
Australian organisations can help prevent air pollution from e-waste burning by ensuring all e-waste is processed through certified domestic facilities, verifying that ITAD providers do not export waste to countries with informal processing operations, choosing providers with transparent chain-of-custody documentation that shows where materials go, supporting industry initiatives that build formal recycling capacity globally, and advocating for stronger enforcement of e-waste export regulations.
For information on how to select ITAD providers that meet proper environmental standards, see our guide on how to choose an ITAD provider in Australia. For a broader view of the environmental costs of improper e-waste management, our guide on the true environmental cost of electronic waste covers the full picture.
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