Log the outdoor air quality at Northgate Senior Center, Seattle WA on smoky or smoggy days (2026-07-21)

On wildfire-smoke and smog days, the outdoor air near Northgate Senior Center, Seattle WA can be unhealthy to breathe, but there is no local record. Take a simple PM2.5 or AQI reading and log the conditions so the community can decide when to keep kids and elders inside. Standard: US EPA NAAQS ambient screening (PM2.5, ozone) + community air-monitoring protocol; SDG 11.6 Proof: photos + GPS + labeled PM2.5/AQI readings + weather note + date Method (EPA NAAQS community ambient-air screening (PM2.5), ~45-90 min): 1. Choose >=3 points (near-source/roadside, mid, background); record GPS at each; stay off the roadway. 2. Photograph each monitoring location. 3. Log PM2.5 (ug/m3) at each point over a comparable peak period. 4. Record wind direction, time, and nearby source activity (e.g., truck traffic). 5. Compare readings to the NAAQS reference. 6. Enter the PM2.5 logs, wind/time, source note, GPS, photos into the proof record; sign. Equipment: calibrated PM2.5 monitor, GPS phone, wind/weather note source, hi-vis vest, camera Done when: PM2.5 logged at >=3 points (near-source / mid / background); Wind direction + time recorded; Source-activity observation recorded; GPS waypoints + location photos

Where

Northgate Senior Center, Seattle WA

Pay

$312 proposed

This packet is not funded yet, so this figure is a proposed price and not money waiting in escrow. If a buyer funds it, approved proof settles that price onchain. If nobody funds it, approved proof earns provable credit toward the work instead of cash. You see which before you claim, never after.

Proof

photos + GPS + labeled PM2.5/AQI readings + weather note + date

This is exactly what gets it approved. Nothing settles without it.

Level

entry

Open until

2026-07-28

How this work is done

A documented method, so this packet comes out the same whoever does it. Typically 45–90 minutes. Method of record: EPA NAAQS community ambient-air screening (PM2.5)

Bring

• calibrated PM2.5 monitor
• GPS phone
• wind/weather note source
• hi-vis vest
• camera

Steps

1. 1. Choose >=3 points (near-source/roadside, mid, background); record GPS at each; stay off the roadway.
2. 2. Photograph each monitoring location.
3. 3. Log PM2.5 (ug/m3) at each point over a comparable peak period.
4. 4. Record wind direction, time, and nearby source activity (e.g., truck traffic).
5. 5. Compare readings to the NAAQS reference.
6. 6. Enter the PM2.5 logs, wind/time, source note, GPS, photos into the proof record; sign.

If it does not match the plan

• Roadside work near heavy traffic -> stay off travel lanes; hi-vis at all times.
• Near-source PM2.5 well above background and NAAQS -> flag an environmental-justice exposure concern.

What counts as done

• PM2.5 logged at >=3 points (near-source / mid / background)
• Wind direction + time recorded
• Source-activity observation recorded
• GPS waypoints + location photos

Proof is measured against these, not judged by taste.