11/08/2026
Air may look clean but it can contain gaseous pollutants that affect human health, vegetation and the environment.
Some of the key gaseous pollutants commonly monitored in ambient air include:
๐น Sulphur Dioxide (SOโ) โ mainly associated with combustion of sulphur-containing fuels and industrial processes.
๐น Nitrogen Dioxide (NOโ) โ commonly produced by fuel combustion, traffic, and industrial activities.
๐น Carbon Monoxide (CO) โ a colourless, odourless gas produced by incomplete combustion.
๐น Ozone (Oโ) โ a secondary pollutant formed through chemical reactions involving other pollutants in the presence of sunlight.
๐น Hydrogen Sulphide (HโS) โ often associated with sewage, waste management, and certain industrial processes.
โฑ๏ธ Why 24-hour monitoring?
Air quality can change significantly throughout the day depending on traffic, weather conditions, industrial activities, wind, and other environmental factors. Continuous monitoring therefore provides a more representative picture of the conditions at a site.
At SEEL, we conduct professional 24-hour ambient air quality monitoring to generate reliable environmental data that supports compliance, environmental assessments, and responsible decision-making. ๐ฟ๐
๐ +254 726 856 602
๐ง [[email protected]](mailto:[email protected])
๐ [www.seniorenv.com](http://www.seniorenv.com)
SEEL | Environmental Monitoring & Consulting