Physics Department, Bowen University, Iwo, Osun State, Nigeria.
Department of Mechanical Engineering, University of Johannesburg, Johannesburg, South Africa.
Sci Rep. 2022 Nov 16;12(1):19669. doi: 10.1038/s41598-022-19518-5.
Recently, the World Health Organization reported that 20% of all global maternal deaths happened in Nigeria between 2005 and 2015. In developing countries, these maternal deaths are mainly from air pollution. Due to poor facilities and documentation, the extent of danger is not known. This research seeks to estimate the available pollutants and its direct and indirect impact on maternal mortality. Ten (10) years (2010-2019) datasets of black carbon, sulfur dioxide, dust, carbon monoxide, organic carbon particulates, sea-salts, and sulphate particulates were obtained from the second modern-era retrospective analysis for research and applications (MERRA-2). The dataset was obtained for the six geopolitical zones of Nigeria and analyzed using statistical tool, models, spatial interpolation, and risk analysis. The volumetric and radioecological risk was also analyzed. It was observed the dust content had minute volume of heavy metal and/or radionuclide particles that may be unharmful in the short term but lethal in the long term. The risk quotient and total dose rate per organism are given as 0.00000396 and 0.0000396 µGy h. The result in this manuscript corroborates existing data on maternal mortality in Nigeria. It is recommended that the safety of pregnant woman depends on significant efforts of authorities to enact and enforce environmental laws to mitigate air pollution.
最近，世界卫生组织报告称，2005 年至 2015 年期间，全球 20%的产妇死亡发生在尼日利亚。在发展中国家，这些产妇死亡主要是由空气污染导致的。由于设施和记录不佳，其危险程度尚不清楚。本研究旨在估计现有污染物及其对产妇死亡率的直接和间接影响。从第二现代时代回顾性分析研究和应用（MERRA-2）中获取了黑碳、二氧化硫、灰尘、一氧化碳、有机碳颗粒、海盐和硫酸盐颗粒的十年（2010-2019 年）数据集。该数据集是为尼日利亚的六个地缘政治区获取的，并使用统计工具、模型、空间插值和风险分析进行了分析。还分析了容积和放射性生态风险。观察到灰尘含量含有微量的重金属和/或放射性核素颗粒，这些颗粒在短期内可能无害，但长期来看可能致命。每个生物体的风险商数和总剂量率分别为 0.00000396 和 0.0000396µGy h。本文的结果证实了尼日利亚产妇死亡率的现有数据。建议孕妇的安全取决于当局作出重大努力，颁布和执行环境法，以减轻空气污染。
