Mitigation notes
Fri, Apr 9, 2027 · Week 12 · Biotechnology for Health (Biomedical Innovations)
Today's goal: Propose evidence-based strategies to reduce a community's exposure to a chosen pollutant.
This is a model of the work you should turn in today. Use it to check your own: match the structure and the level of detail, do not copy it. Your data and wording should be your own.
Parallel case (not today's pollutant). Pollutant: radon gas seeping into homes from the soil. Population most at risk: residents of ground-floor bedrooms in homes built on radon-rich bedrock, since they breathe the highest concentrations for the most hours.\n\nStrategy 1 (source-side): Install a sub-slab depressurization system, a vent pipe and fan that pulls radon out from under the foundation and releases it above the roof. Predicted effect: it intercepts the gas before it enters living space, so the indoor concentration and the resident's dose drop sharply and stay low. Tradeoff: it costs more up front, needs a professional to install, and the fan draws electricity continuously.\n\nStrategy 2 (receptor-side): Seal foundation cracks and run mechanical ventilation to dilute and exhaust indoor air. Predicted effect: it lowers the concentration reaching the resident, cutting dose noticeably and quickly at low cost. Tradeoff: sealing is only partial because new cracks open over time, and ventilation loses effectiveness when windows and vents are closed in cold weather.\n\nClaim: The community should begin with receptor-side sealing and ventilation now while planning source-side depressurization for the highest-reading homes.\n\nEvidence: Sealing and added ventilation are cheap and fast and produce an immediate, measurable drop in indoor radon, which protects at-risk residents this winter. Sub-slab depressurization produces a larger and more durable reduction because it removes the gas at its source, but it costs more and takes longer to install across many homes.\n\nReasoning: The best short-term risk-to-cost balance comes from the receptor-side steps, because they reduce the dose reaching people right away for very little money. Source-side depressurization is the permanent fix and gives the largest dose reduction per home, so it should run in parallel and be prioritized for the homes with the highest measured radon. Sequencing the two this way lowers exposure fastest while still moving toward the durable solution.
This model shows the level of evidence and organization needed to complete: Models the Problem 4 mitigation step on a parallel pollutant: two strategies (source-side and receptor-side), dose-reduction predictions, feasibility tradeoffs, and a justified recommendation, without answering today's own prompt.
- Write one defensible claim.
- Choose specific evidence that supports the claim.
- Explain the scientific rule that connects the evidence to the claim.
Keep the structure. Replace the question, facts, measurements, and evidence. Then recheck units, vocabulary, and whether the conclusion goes beyond the evidence.
Also due today: Submit your mitigation notes on Schoology today.
Turn in: Worked CER on a parallel case
Go to Schoology to turn this in.
Submit one PDF. Put your first and last name in the document header. Name the file: FirstName LastName - Assignment Title - YYYY-MM-DD.pdf.
Open Schoology PDF upload helpIf you cannot get in, see Mr. Mendoza. Do not skip the work.
Claim ceiling: Today's evidence supports a classroom claim about mitigation notes. It cannot prove causation, diagnose a real patient, or justify action outside this room.
One exam-style question that uses exactly what you practiced today. Try it before you reveal the answer, then read why each choice is right or wrong.
Tap an answer to see the full explanation. Nothing is recorded or graded.
It builds this reusable test skill: Distinguishing source-side from receptor-side mitigation.
- Name the concept or data pattern being tested.
- Cross out choices that violate that rule or the evidence.
- Justify the best remaining choice before checking the answer.