Airly Analysis Based on DEFRA Monitoring Data Highlights Urgent Need for Localised Action Northern England is facing a widening air quality challenge that risks deepening the long‑standing North–South divide. New analysis conducted by data scientists from Airly, based on 2025 data from DEFRA reference stations, shows that none of the 18 assessed Northern cities met […]

Any sensor can claim to precisely measure air quality. Far fewer can prove it. At Airly, quality assurance is not a marketing statement – it is a documented, independently verified process that runs from factory calibration to continuous field validation. Here is what that means in practice. A reference station on our premises – test […]

Key Points: Targeted policies drive rapid improvement: Historically polluted cities like Milan, Rome, and Birmingham are proving that aggressive Low Emission Zones (LEZs) can drastically reduce urban particulate matter. Geography isn’t destiny: While coastal cities have a natural advantage, inland and post-industrial hubs are successfully reversing their pollution legacies through electrified public transit and strict […]

People tend to distrust what they cannot see. Air pollution is one of the most significant public health threats worldwide, responsible for over 7 million deaths annually, yet it remains invisible to the human eye. That gap between what the data says and what people can actually see feeds environmental anxiety. Residents know the air […]

As winter fades and construction sites ramp up activity, air quality risks rise sharply. Heavy machinery returns, earthworks accelerate, and dust suppression routines often lag behind the pace of work. This seasonal shift can create dangerous spikes in particulate matter, affecting workers, nearby communities, and even sensitive equipment. With stricter environmental expectations in upcoming years, […]

Key Points: The Frontline of Environmental Policy: While national governments set the legal frameworks, municipal authorities are best positioned to enforce targeted, street-level interventions such as Clean Air Zones. Closing the Municipal Data Gap: Traditional monitoring is often too sparse. Hyper-local, real-time sensor networks give city councils the exact evidence needed to pinpoint pollution hotspots […]