Live Environmental Monitor v4.1
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🔔 0
🔊 Noise Level ICS-43432
MEMS microphone (ICS-43432). Approximate sound pressure level. Normal conversation: 50–60 dB. City traffic: 70 dB. Dog bark: 80–90 dB. WHO safe limit: 85 dB sustained. Horn: 100–110 dB. Gunshot (9mm): 160+ dB.
Sound Pressure Level
—dB
▼ Quiet ≤30▲ WHO 85 dB
▲HI 0▼LO 0
🌡️ Environment BME280 + LTR559
Temperature, humidity, barometric pressure & ambient light. BME280 range: –40 to 85°C, 0–100%RH, 300–1100 hPa. LTR559 lux range: 0.01–64k lux.
Temperature
—°C
▼ LO 15°C▲ HI 35°C
▲HI 0▼LO 0
Humidity
—%RH
▼ LO 20%▲ HI 80%
▲HI 0▼LO 0
Barometric Pressure
—hPa
▼ LO 980▲ HI 1050
▲HI 0▼LO 0
Ambient Light
—lux
▼ LO 10▲ HI 10000
▲HI 0▼LO 0
🏭 Gas Analysis MICS-6814
3-channel MOS gas sensor. Detection ranges: CO 1–1000 ppm, NO₂ 0.05–10 ppm, NH₃ 1–500 ppm. Also sensitive to H₂, C₂H₅OH, H₂S, isobutane, propane. Resistance changes indicate gas concentration.
Oxidising — NO₂ / O₃
—kΩ
▼ Clean 10–30▲ NO₂ >150
▲HI 0▼LO 0
Resistance INCREASES with gas. Elevated by: vehicle exhaust, wildfires (downwind), industrial emissions. Clean air: 10–30 kΩ. Urban/traffic: 30–80 kΩ. High NO₂/O₃: >100 kΩ. Severe: >200 kΩ.
Reducing — CO / VOC
—kΩ
▼ CO/VOC <50▲ Clean 150–500
▲HI 0▼LO 0
Resistance DECREASES with gas. Elevated by: incomplete combustion, gas leaks (propane, natural gas), gasoline vapour, forest fires. Clean: 150–500 kΩ. Urban CO/VOC: 80–150 kΩ. Gas leak/fire: <80 kΩ. Danger: <40 kΩ.
Ammonia — NH₃
—kΩ
▼ LO 10▲ HI 1500
▲HI 0▼LO 0
Resistance DECREASES with concentration. Sources: agricultural runoff, livestock, industrial cleaning, decomposition. Clean: 10–100 kΩ. Agricultural: 100–500 kΩ. Industrial leak: >500 kΩ.
🏭 Particulate Matter NO SENSOR
PMS5003 laser scattering sensor. Measures airborne particles from combustion engines, generators, factories, mining dust & construction. WHO 24h limits: PM2.5 ≤ 15 µg/m³, PM10 ≤ 45 µg/m³.
PM 1.0 — Ultra-Fine
—µg/m³
▼ OK ≤10▲ HI >25
▲HI 0▼LO 0
Ultrafine particles (<1µm) penetrate deep into lungs and bloodstream. Sources: combustion engines, welding, cooking fumes. WHO: no safe level established. >25 µg/m³ = elevated industrial exposure.
PM 2.5 — Combustion / Smoke
—µg/m³
▼ WHO ≤15▲ HI >35
▲HI 0▼LO 0
Fine particles from diesel exhaust, wildfire smoke, industrial combustion. WHO 24h limit: 15 µg/m³. EPA AQI >35.5 = Unhealthy for Sensitive Groups. Monterrey often elevated due to traffic and industrial zones.
PM 10 — Dust / Mining
—µg/m³
▼ WHO ≤45▲ HI >100
▲HI 0▼LO 0
Coarse particles from construction dust, mining, road dust, sandstorms. WHO 24h limit: 45 µg/m³. EPA AQI >155 = Unhealthy. Common near quarries, unpaved roads and heavy machinery.
📍 Monitoring Location
📍 Flor Dalia, Carolco
Monterrey, Nuevo León, Mexico — Carretera Nacional
🚨 Environmental & Security Alerts
⚪ OFF
| Time | Source | Level | Value | Detail |
|---|---|---|---|---|
| No alerts recorded. Environmental alerts trigger when sensors exceed health thresholds. Noise events appear when armed. | ||||