Heyida
54 AQI
Satisfactory AQI
🌬 PM1054.0
💨 NO₂8.7
🛢 CO4.6
🏭 SO₂1.6
📖 What Each Pollutant Tells You
Each pollutant plays a unique role in determining air quality. Here's what the values above actually mean for your health and environment:
-
🌫 PM2.5 (Fine Particulate Matter):
Microscopic particles that go deep into the lungs. Long exposure can worsen asthma, heart issues, and
respiratory illnesses.
Safe: 0–30 | Caution: 31–60 | Hazard: 90+ -
🌬 PM10 (Coarse Particulates):
Larger dust and pollen particles. Can irritate the eyes, throat, and cause coughing or short breath.
Safe: 0–50 | Moderate: 51–100 | Poor: 101+ -
💨 NO₂ (Nitrogen Dioxide):
A key traffic-related pollutant. High levels are linked to reduced lung function and increased hospital
visits.
Safe: 0–40 μg/m³ | Moderate: 41–80 | Risky: 81+ -
🛢 CO (Carbon Monoxide):
Released from incomplete combustion (vehicles, stoves). In high concentrations, it limits oxygen to vital
organs.
Safe: 0–1 mg/m³ | Elevated: 1.1–2 | Unsafe: 2.1+ -
☀️ O₃ (Ozone):
Formed by chemical reactions in sunlight. While good in the upper atmosphere, ground-level O₃ is harmful to
lungs.
Acceptable: 0–50 | Moderate: 51–100 | Dangerous: 101+ -
🏭 SO₂ (Sulfur Dioxide):
Produced by burning coal or oil. Short-term exposure irritates the eyes, nose, and throat. Long-term effects
can damage lungs.
Safe: 0–40 | Moderate: 41–80 | Risky: 81+
Note: Children, older adults, and people with respiratory conditions should reduce outdoor
exposure when pollutant levels cross into the caution zone.
🌍 Other Stations in Zhengzhou
🤔 FAQs About Heyida Air Quality
The AQI at Heyida is 54, classified as
Satisfactory.
Acceptable, but people with respiratory conditions should still be cautious.
PM10 is currently 54.0 at Heyida, labeled
Satisfactory. This indicates presence of coarse dust and pollen. If you're
sensitive to dust or allergens, consider wearing a mask or avoiding dusty areas.
Carbon Monoxide is measured at 4.6 mg/m³ here. While safe under 1 mg/m³,
higher levels can reduce oxygen delivery to organs. Vulnerable groups should avoid enclosed, polluted
spaces.
Nitrogen Dioxide is 8.7 µg/m³ – a marker of traffic pollution. If you're in a
high-traffic area or sensitive to respiratory irritants, it's wise to avoid peak rush hours outdoors.
Data was last refreshed at 2025-08-23 11:00:00. Some stations update hourly;
others may lag. Always check timestamp before taking action.
📊 Data Source Attribution
Air quality data provided by the World Air Quality Index (WAQI) project and the Central Pollution Control Board (CPCB), sourced via data.gov.in.