Environment Ministry Rejects Misinformation on Cambodia’s Air Quality

The Ministry of Environment (MoE) of Cambodia has issued a public statement refuting recent claims that the nation’s air quality is dangerously poor. The ministry emphasises that while particulate‑matter levels have shown temporary fluctuations, they do not currently reach thresholds that pose a broad health threat.

Monitoring and data

The MoE reports that its network of monitoring stations — spanning the capital and provinces — registers concentrations of fine particulate matter (PM2.5) well within the national standard of 50 µg/m³ for 24‑hour averages. In the latest readings, many regions recorded levels significantly below that threshold. The ministry further notes that it publishes real‑time updates via its official channels and mobile apps.

Addressing misleading information

The ministry acknowledges that independent platforms such as IQAir have reported higher readings, including instances where the capital ranked among the world’s most polluted cities. However, the MoE clarifies that international indices may apply different measurement criteria and that direct comparisons can mis‑represent the local context.

Sources of pollution and response measures

Though current levels are within acceptable bounds, the MoE warns of recurring risks: open burning of agricultural waste, forest fires, burning of plastics and solid waste continue to contribute to elevated PM2.5 concentrations. To address this, the ministry has been implementing its Clean Air plan, which includes reducing open‑burning practices and improving waste‑management systems.

What it means for the public

According to the MoE:

• For most people, outdoor activity remains safe under the current reported conditions.
• Those with respiratory or cardiovascular conditions should remain aware of daily air‑quality updates.
• The public is urged not to rely solely on off‑site monitoring services or social‑media reports that might reflect short‑term spikes or external pollution sources.

Outlook

While the ministry’s assurances reflect official monitoring data, experts note that the World Health Organisation’s annual guideline for PM2.5 is 10 µg/m³ — a level considerably stricter than Cambodia’s current standard of 50 µg/m³. Achieving the lower threshold would require continued effort in emissions control and cross‑border pollution management.

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