- Volume 10, Number 1 (2023)
POLLUTION GUARDIANS: ADVANCING ENVIRONMENTAL SUSTAINABILITY THROUGH NOX AND TOTAL OXIDANTS MONITORING IN ILORIN, NIGERIA
Ibrahim Muhammed Suleiman, Olumide Olatunji Adebayo, Funmilayo Adeola Adeyemi
Urbanization has led to a pressing concern: atmospheric pollution, driven by the concentrated industrial and transportation activities in urban areas. This study focuses on the omnipresent issue of oxides of nitrogen (NOX = NO + NO2) concentrations in urban atmospheres, predominantly arising from industrial boilers and non-industrial fuel combustion, both from stationary and mobile sources. Moreover, these primary pollutants can undergo photochemical transformations, giving rise to secondary pollutants, collectively known as photochemical oxidants. Ozone stands as a prominent component of this group, along with peroxyacetylnitrate (PAN), hydrogen peroxide (H2O2), and other compounds, forming intricate multi-path photochemical processes. The production of...
A CLEAR PERSPECTIVE: PRECISE MEASUREMENT OF CARBON DIOXIDE THROUGH A SIMPLE DISTILLATION APPROACH
Reem Abdulrahman Al-Harthy
High-pressure solvent extraction (HPSE) has gained significant popularity in the chemical, food, and pharmaceutical industries due to its efficiency and selectivity. Carbon dioxide (CO2) extraction, in particular, has emerged as a promising technique for obtaining flavors and fragrances from plant materials. Traditional extraction methods, such as steam distillation and solvent extraction, often necessitate additional processing steps and exhibit lower selectivity compared to CO2 extraction. HPSE, characterized by lower temperature and minimal water content, prevents thermal degradation and hydrolysis, resulting in extracts that retain the plant's active compounds and preserve the original scent. This research focuses on the application of HPSE...