Assessment of Air Quality in Brazzaville: Measurement of Some Automobile Pollutants

Diambalou, Rancia Colombe Diakouka; M’sengui Dzamba, Presley Jeanel Ibrahim; Kaya-Ongoto, Moïse Doria; Abena, Ange Antoine

doi:10.4236/jep.2023.147031

Cited by 1 publication

(1 citation statement)

References 17 publications

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“…As recently reported in our previous study on automobile pollutants in ambient air in Brazzaville (Diakouka et al [25]), this time our samples were taken from different automobile garages in the districts of Brazzaville. For each district, 4 garages were selected, and 4 samples were taken per garage for two seasons, one in the rainy season and the other in the dry season, over the course of two years (2020 and 2022), i.e., a total of 144 samples for the 9 districts.…”

Section: Environmental Investigationmentioning

confidence: 99%

Exposure to Automobile Pollutants and Sperm Quality among Mechanics in Brazzaville (Congo)

Diambalou,

Dzamba,

Kaya-Ongoto

et al. 2023

OJAP

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Atmospheric pollution is today at the heart of all debates because of its potentially harmful effects on the environment, the climate, and human health; it currently constitutes a real public health problem. However, the increase in infertility around the world has led scientists to look for a link between air pollution and fertility. This study consisted of evaluating the short-term influence of automobile pollution on the semen parameters of mechanics in Brazzaville. A cross-sectional, analytical, prospective study between two groups (G1, exposed people and G2, unexposed people) was carried out in Brazzaville on 228 patients, i.e., G1 with 76 subjects and G2 with 152 subjects, between June 2020 and September 2022, a period of 27 months, in order to evaluate, on the one hand, the quality of sperm in men exposed to automobile pollution according to WHO recommendations and, on the other hand, the quality of the air by a colorimetric method, punctual on a Dräger tube coupled with a Dräger Accuro pump. The concentrations of automotive pollutants measured (CO, CO 2 , NO 2 , SO 2 ) during this study were all above the 2021 air quality standards required by WHO. These results made it possible to establish a statistically significant link between air pollution and abnormal spermogram parameters, notably mobility, count, and morphology for the spermocytogram. Exposures to automobile pollutants can influence sperm quality, which is consistent with the results of our study. We observed an alteration in the morphology, mobility, and concentration of spermatozoa.

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Section: Environmental Investigationmentioning

confidence: 99%