Read location, pollutant and time metadata
See this course’s project requirements
An air-quality interpretation card with pollutant/time metadata, AQI categories, official guidance and revised activity choices for fictional users.
Keep your working files in your own notebook or software. Save a private description, checklist, and work link in My Proof.
What to include
- Separate weather, appearance and pollutant information.
- Compare place, pollutant, time and report type.
- Classify all supplied category boundaries.
- Match the particle guide to fictional group/activity facts.
- Compare indoor alternatives with scope and heat/source limits.
- Document a changed report and revised decision without personal health data.
Review and revise
Use these criteria to check your work and choose what to improve.
- Method: applies the course-specific rules to the supplied cases with visible intermediate work.
- Accuracy: results agree with the stated facts, units, boundaries and independent checks.
- Reasoning: explains why the result follows and identifies a limitation or unresolved question.
- Transfer: completes changed cases and revises the final project when a relevant assumption changes.
Want more background?
The idea in everyday life
Fictional cards: A—North Town, particle AQI 130, current estimate, updated 14:00 today; B—South Town, ozone AQI 75, tomorrow forecast; C—North Town, particle AQI 90, current estimate, updated yesterday 14:00. Decision concerns North Town this afternoon. Times are supplied exercise labels.
A useful air report identifies place, pollutant, update time and whether it is a current estimate, daily summary or forecast. A forecast is a prediction rather than a measurement of the exact hour. A stale or distant report may not fit a decision; compare like reporting types and check the official local source.
Read location, pollutant and time metadata — worked practice
A useful air report identifies place, pollutant, update time and whether it is a current estimate, daily summary or forecast. A forecast is a prediction rather than a measurement of the exact hour. A stale or distant report may not fit a decision; compare like reporting types and check the official local source.
Fictional cards: A—North Town, particle AQI 130, current estimate, updated 14:00 today; B—South Town, ozone AQI 75, tomorrow forecast; C—North Town, particle AQI 90, current estimate, updated yesterday 14:00. Decision concerns North Town this afternoon. Times are supplied exercise labels.
1. 1. Extract
Write four metadata fields for each card.
You should see: Place, pollutant, report type and timestamp.
2. 2. Match
Choose the directly relevant supplied card for this afternoon.
You should see: A matches North Town, current type and today’s update.
3. 3. Distinguish
Explain why B is a different comparison.
You should see: It changes place, pollutant and forecast period.
4. 4. Freshness
Explain why C needs a fresh check.
You should see: Yesterday’s current estimate is not the current afternoon report.
What to finish
A three-card metadata comparison with a freshness decision.
Watch for this
The value’s pollutant context helps select the appropriate guidance and compare reports. An index number alone omits relevant meaning.
How can I tell I understand it?
Choose a changed matching timestamp without dropping location or pollutant checks.
Quick knowledge check
Answer all 3 questions. Get at least 2 right and the lesson completes automatically.
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Answer all 3 questions above and get at least 2 right. You can review the explanations and try again.
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Source & access notes · checked 2026-10-01
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