The brief
The industrial township authority needed ward-level air quality monitoring to meet CPCB compliance requirements and provide transparent environmental data to residents via a public dashboard.
The challenge
- No existing hyperlocal monitoring — only one CPCB reference station for the entire township
- Regulatory mandate for continuous, tamper-proof data submission to CPCB SAMEER
- Public pressure for transparent, real-time citizen-facing air quality information
- Harsh industrial environment with dust, vibration, and temperature extremes
What we deployed
- 64 Spondbyte AQ nodes across all wards
- 12 atmospheric parameters per node (PM2.5, PM10, NO2, SO2, CO, O3, temperature, humidity, pressure, wind speed, wind direction, rainfall)
- Automated CPCB SAMEER data push — continuous, tamper-evident
- Public-facing citizen dashboard with ward-level drill-down
- LoRaWAN + NB-IoT connectivity with solar power
- Deployment timeline: 4 months end-to-end
The solution architecture
Each node houses a CPCB-grade sensor suite in a ruggedised, solar-powered enclosure. Readings transmit every 60 seconds over a dual-path LoRaWAN/NB-IoT network to the central Spondbyte data platform running + Time-Series DB.
The platform feeds three consumers simultaneously: the CPCB SAMEER regulatory portal (automated push), the authority's internal operations dashboard (with alerting and compliance reporting), and a public citizen dashboard with ward-level maps and historical trends. All data is signed at the node and verified at ingest to ensure tamper-evident audit trails.
Results
64/64
Nodes active
8.4 M
Data points/day
100%
CPCB compliance
45,000+
Citizen dashboard users
Quote
"Spondbyte gave us something no single vendor could: real ward-level data, a public dashboard residents actually use, and compliance filings that happen without a human in the loop."
— Environment Officer, North India Industrial Township
Timeline
| Phase | Duration | Scope |
|---|---|---|
| Site survey | 2 weeks | Ward mapping, mounting locations, power and connectivity audit |
| Node deployment | 4 weeks | Installation, calibration, network commissioning |
| Platform integration | 3 weeks | SAMEER connector, dashboards, alerting rules |
| Citizen dashboard | 3 weeks | Public portal, ward maps, historical views |
| Go-live | 1 week | Phased ward activation |
What's next
Expansion to neighbouring townships. Integration of noise monitoring. Pilot of predictive air quality modelling using time-series ML on the accumulated dataset.