Ozone review finds child health associations below the cited air-quality standard
The most consistent links involved birth weight, asthma, respiratory disease and obesity, while findings for many other conditions remained disputed.
Based on the published abstract. The full paper may contain additional methods, results and limitations.
The 30-second takeaway
The review reports consistent associations between ambient ozone exposure and low birth weight, asthma, respiratory disease and obesity in children, including at concentrations below the cited World Health Organization standard. These observational findings raise questions about protection at lower exposures, but they do not establish that ozone alone caused the health outcomes.
The abstract gives no outcome-specific effect estimates, exposure thresholds or details of adjustment for other influences. It also reports disagreement for many diseases, limiting conclusions beyond the outcomes with more consistent evidence.
Exposure patterns both matter
The review considers sustained exposure and brief ozone peaks, and reports health concerns with both patterns. It does not provide enough numerical detail to compare their risks or identify a threshold for any particular outcome.
A policy conclusion with limits
The authors argue that existing standards need revision. That is their interpretation of the reviewed epidemiology; the abstract does not specify an alternative limit or resolve the conflicting evidence for many of the diseases considered.
The original publication
Ambient Ozone Exposure and Global Child Health: A Systematic Review of Epidemiological Studies.
Zhou Y, Qu L, Li D et al.
Acta Paediatr · 2025
- PubMed ID
- 40908624
- Record checked
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