CLeNECity-Level NO₂ Exposure Intelligence

Satellite-derived exposure intelligence for West African cities, built to support research, policy, and public-health decision making.

Beta 1.02019-202527 cities

Platform

  • Home
  • Insights
  • About
  • Contact

Explore Data

  • Interactive Map
  • Trends
  • Cities
  • Health

Data Basis

Sentinel-5P TROPOMI NO₂ columns, NASA Gridded Population 2020, and supporting boundary layers.

NO₂ columns are not direct surface concentrations, clinical outcomes, or regulatory certification.

atmostechlab@knust.edu.gh

Copyright 2026 AtmosTech Lab, KNUST. All rights reserved.

West AfricaKNUST
Loading trends and analytics
Beta 1.0

CLeNE is currently in beta. Your feedback helps us improve city-level NO₂ exposure intelligence.

Submit Feedback
CLeNE City-Level NO2 Exposure Intelligence
HomeInsights
About
Contact
Trends and Analytics

West Africa Trend Diagnostics

Annual trends, seasonal cycle, and population-weighted exposure.

Yearly NPWEI Trend

Annual - DJF - JJA - 0-100

West Africa Average

Country Comparison

All countries ranked by NPWEI - Annual Mean

Annual Mean

Seasonal Monthly Cycle

Indicative monthly NPWEI pattern

Dry vs Wet

City Rankings

Top cities by NPWEI - All cities

Top 10 All Countries