Тип публикации: доклад, тезисы доклада, статья из сборника материалов конференций
Конференция: Actual Problems of Ecology and Environmental Management (APEEM 2023); Moscow; Moscow
Год издания: 2023
Идентификатор DOI: 10.1051/e3sconf/202340702003
Аннотация: <jats:p>This study used ten years (2013-2022) of satellite observations to assess the levels of nitrogen dioxide (NO<jats:sub>2</jats:sub>), carbon monoxide (CO), and aerosol optical depth (AOD) over Eastern Africa. NO<jats:sub>2</jats:sub> vertical column density (VCD) varied between 3.17 × 10<jats:sup>14</jats:sup> and 4.70 × 10<Показать полностьюjats:sup>14</jats:sup> molecules cm<jats:sup>-2</jats:sup> with a seasonal variability reaching the peak in December every year. CO mixing ratio oscillated between 95.256 ± 15.480 ppbv and 76.011 ± 5.609 ppbv and demonstrated a bimodal seasonal variability. The level of AOD fluctuated between 0.126 ± 0.070 and 0.250 ± 0.165. Generally, the concentrations of these pollutants are comparable to the global levels, though the AOD increasing trend is an indicator of the deterioration of air quality in the east African region.</jats:p>
Журнал: E3S Web of Conferences
Выпуск журнала: 407
Номера страниц: 02003
Место издания: EDP Sciences