Faculty of Health Sciences & Wellbeing, University of Sunderland, Sunderland, England.
University of Aberdeen, Aberdeen, Scotland.
BMC Public Health. 2023 Mar 15;23(1):496. doi: 10.1186/s12889-023-15327-1.
Real-time ozone (O) concentration is vital for accurate analysis of O to inform the public about O concentrations that may have an adverse effect on health. Few studies have analysed air pollution in Abuja, Nigeria and non on real-time ozone concentrations. As a result, there is a scarcity of data and information on real-time ozone pollution, pointing to a gap that needs to be urgently closed to enable a better understanding of ozone pollution and the causes and consequences in terms of the associated health risks.In this study, -time concentrations of ground-level ozone were measured in a busy urban pollution monitoring station. Using a real-time ozone monitor to enable real-time monitoring of O concentration of ozone for the first time in Abuja. The ozone concentrations followed a clear pattern with high concentrations being recorded during the dry (harmattan) season. Concentrations higher than the WHO standard of (eight-hour averaged) 100 µg/m, occurred on 53 days over the 5-month dry season. Of those 53 days, 18 had ozone concentrations greater than 200 µg/m. Daily patterns showed a rise throughout the day, reaching a peak in the evening. Weekday/weekend differences were less pronounced than those found in other studies. High temperatures and local climatic conditions in Abuja encourage the formation of ozone. In this study, we confirm the concentration of ozone, and the pattern can be episodic and potentially damaging to health. There is a need for better regulation and measures to reduce ozone, particularly when local climatic conditions, such as harmattan, favour the development of photochemical smog in such settings.
实时臭氧 (O) 浓度对于准确分析 O 至关重要，以便告知公众可能对健康产生不利影响的 O 浓度。很少有研究分析过尼日利亚阿布贾的空气污染，也没有研究过实时臭氧浓度。因此，实时臭氧污染的数据和信息稀缺，表明存在一个亟待解决的差距，以便更好地了解臭氧污染以及相关健康风险的原因和后果。在这项研究中，在一个繁忙的城市污染监测站测量了地面臭氧的实时浓度。使用实时臭氧监测仪，首次在阿布贾实现了对臭氧浓度的实时监测。臭氧浓度呈现出清晰的模式，高浓度在干燥（哈马丹）季节记录。在 5 个月的干燥季节中，有 53 天的臭氧浓度高于世界卫生组织标准（八小时平均值）100μg/m3。在这 53 天中，有 18 天的臭氧浓度大于 200μg/m3。日变化模式显示全天呈上升趋势，傍晚达到峰值。工作日/周末差异不如其他研究发现的那么明显。阿布贾的高温和当地气候条件促进了臭氧的形成。在这项研究中，我们证实了臭氧浓度，并且这种浓度可能是突发性的，对健康有潜在危害。需要更好的监管和措施来减少臭氧，特别是在当地气候条件（如哈马丹）有利于在这种环境中形成光化学烟雾的情况下。
