Industrial Air Pollution: The Hidden Threat in North China
Industries in North China are releasing harmful gases that are worsening air quality. These gases, known as Volatile Organic Compounds (VOCs), are detrimental to both the environment and human health. A recent study examined 28 companies from 13 different industries to assess the impact of these emissions.
Key Findings
- Petrochemical and pharmaceutical industries are the largest emitters of VOCs.
- Surface coating industries release significant amounts of halogenated hydrocarbons.
- Petrochemical industries emit more aromatics.
Health and Environmental Impacts
VOCs contribute to the formation of ozone and secondary organic aerosols, which can cause respiratory problems and other health issues. The study identified acrolein and acetaldehyde as priority hazards, particularly in the resin, plastic, pharmaceutical, and petroleum industries.
Climate Impact
- Freon-12 and Freon-11 from the petrochemical industry are major contributors to global warming.
- The study recommends industry-specific strategies to control these emissions effectively.
Policy Recommendations
The study emphasizes the need for:
- Better emission factors
- Reactivity-oriented controls
- Multi-pollutant synergies in policy frameworks
Industries must be more aware of the types and amounts of VOCs they release and take steps to reduce their impact on air quality, health, and climate.