🌱 Environment

AI Mobile Air-Quality Grid & Eco-Smart Guard Platform

The Hangzhou Ecology and Environment Bureau's 'Eco-Smart Guard' (生态智卫) platform divides the city into roughly 48,000 micro-grid cells of 300m x 300m and fuses fixed monitors with mobile sensors mounted on electric buses and taxis, processing over 500,000 data points an hour with an AI model to flag construction-dust and other particulate hotspots in near real time. Reported in Hangzhou government coverage in 2024-25, the system flagged over 4,000 high-dust incidents with a claimed 95% early-warning accuracy and an 80% success rate tracing pollution back to a source; the bureau credits it as one factor behind a 6.7% year-on-year drop in average PM10 to 47.1 micrograms per cubic metre in 2024. All figures are self-reported by the operating bureau; no independent audit of the accuracy or attribution claims was found.

Live 📅 since 2024

🤖 AI-generated summary of the sources below — how this works · 🔎 Last verified 2026-08-02

🌱 Environment Sensors & IoT Artificial intelligence Air quality

📊 Impact

48,000 micro-grid cells (300m x 300m each); over 500,000 data points processed per hour; 4,000+ high-dust incidents flagged; 95% early-warning accuracy and 80% source-tracing success claimed by the bureau; city-average PM10 fell 6.7% year-on-year to 47.1 µg/m3 in 2024.

🎓 Lesson

The bureau credits the AI system for a real, city-measured pollution drop — but every number in that chain, including the accuracy rate of the AI itself, comes from the same self-reporting bureau, with no outside audit found.

Evidence🏛️ Official

Scale🏙️ City-wide

📖 Terms in this entry: Adaptive traffic signals · Low-emission zone · Urban sensor network

Sources

↗ eHangzhou (city government, English) — AI dust fightOperator, grid size, data-processing rate, incident/accuracy/source-tracing figures, 2024 PM10 figure.

↗ Hangzhou Municipal Government — AI vs dust (Chinese)Corroborating Chinese-language coverage of the same figures (fetch returned 503 during review; corroborated via search snippet only).

↗ Sina Finance — Hangzhou AI dust fightIndependent press corroboration that the reporting is not solely a government press release.

This overview was generated with AI from the public sources listed above and checked against them before publication. It has not had a complete human fact-check — treat it as a starting point and follow the sources.

Continue exploring

Compare this project

🇮🇳 Hyperlocal Air Mapping: Sensor Network and Mobile Monitoring · Bengaluru Both fuse fixed and mobile air sensors into a fine-grained grid — Hangzhou's 300m cells versus Bengaluru's mapping-fleet-driven mesh. 🇨🇳 Citywide Smart Water Meter Rollout · Tianjin Like Tianjin's leakage-rate figure, Hangzhou's AI accuracy claims come only from the reporting bureau — neither has an independent audit. 🇨🇳 Sponge City: Permeable Infrastructure & Waterlogging Monitoring · Hangzhou Another verified project from Hangzhou.

Explore the wider context

📟 A Reading Is Not a Decision 📡 Sensors & IoT guide 🏙️ Hangzhou city profile 🌱 Environment projects

📎 Cite this project

1001 Smart Cities (2026). “AI Mobile Air-Quality Grid & Eco-Smart Guard Platform” — Hangzhou, China. The Smart City Atlas. https://1001smartcities.org/projects/hangzhou-ai-dust-monitoring/ (last verified 2026-08-02). Data: CC BY 4.0.

The underlying data is free to reuse with attribution — see the open data page.

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