Air Quality – El Dorado Weather
Placerville, CA | Elevation 1,705 ft | EDW AQI Sensor
PM2.5 NowCast: 3.6 µg/m³ |
PM10 NowCast: 4.0 µg/m³
PM2.5 Particulates
Current AQI4.7
NowCast3.6 µg/m³
1-Hour Mean3.8 µg/m³
24-Hour Mean3.3 µg/m³
1-Hour Max4.8 µg/m³
24-Hour Max51.8 µg/m³
PM10 Particulates
Current AQI5.0
NowCast4.0 µg/m³
1-Hour Mean4.1 µg/m³
24-Hour Mean3.7 µg/m³
1-Hour Max5.5 µg/m³
24-Hour Max81.7 µg/m³
Data Coverage
NowCast Coverage100.0%
Overall AQI19.7
DescriptionGood
StationEl Dorado Weather
Elevation1,705 ft
PM1 Particulates
Current AQI3.8
Overall AQI19.7
DescriptionGood
Raw Sensor Data
{
"data": {
"source": "testtags.php",
"station": "El Dorado Weather",
"timestamp": "1787204102",
"conditions": [
{
"aqi": 19.699999999999999289457264239899814128875732421875,
"aqi_description": "Good",
"pm_1_aqi": "3.8",
"pm_2p5_aqi": "4.7",
"pm_10": "5.0",
"pm_2p5_nowcast": "3.6",
"pm_10_nowcast": "4.0",
"pm_2p5_last_1_hour": "3.8",
"pm_2p5_last_24_hours": "3.3",
"pm_2p5_1hr_max": "4.8",
"pm_2p5_24hr_max": "51.8",
"pm_10_last_1_hour": "4.1",
"pm_10_last_24_hours": "3.7",
"pm_10_1hr_max": "5.5",
"pm_10_24hr_max": "81.7",
"pct_pm_data_nowcast": "100.0",
"last_report_time": "1787204102"
}
]
},
"error": null
}
aqi = 19.7
aqi_description = Good
pm1_aqi = 3.8
pm2_5_aqi = 4.7
pm10 = 5.0
nowcast_pm2_5 = 3.6
nowcast_pm10 = 4.0
pm2_5_1hr_mean = 3.8
pm2_5_24hr_mean = 3.3
pm2_5_1hr_max = 4.8
pm2_5_24hr_max = 51.8
pm10_1hr_mean = 4.1
pm10_24hr_mean = 3.7
pm10_1hr_max = 5.5
pm10_24hr_max = 81.7
pct_pm_data_nowcast = 100.0
timestamp = August 19, 2026, 10:35:38 PM PDT
Detailed Readings
PM1 AQI: 3.8
PM2.5 AQI: 4.7
PM10: 5.0
PM2.5 NowCast: 3.6 µg/m³
PM2.5 1-hour avg: 3.8 µg/m³
PM2.5 24-hour avg: 3.3 µg/m³
PM10 NowCast: 4.0 µg/m³
PM10 1-hour avg: 4.1 µg/m³
PM10 24-hour avg: 3.7 µg/m³
AQI: 19.7
AQI Reference Guide
| Category | AQI Range | PM2.5 (µg/m³) | Health Guidance |
| Good | 0–50 | 0.0–12.0 | Air quality is satisfactory |
| Moderate | 51–100 | 12.1–35.4 | Acceptable; some pollutants may concern sensitive people |
| Unhealthy for Sensitive Groups | 101–150 | 35.5–55.4 | Sensitive groups may experience health effects |
| Unhealthy | 151–200 | 55.5–150.4 | Everyone may begin to experience health effects |
| Very Unhealthy | 201–300 | 150.5–250.4 | Health alert – everyone may experience serious effects |
| Hazardous | 301+ | 250.5+ | Emergency conditions – entire population affected |
Last updated: August 19, 2026, 10:35:38 PM PDT | Auto-refreshes every 60 seconds