Calculator Form
This tool does not calculate, recommend, or validate any mushroom dose. It screens construction work readiness risk only.
Formula Used
This calculator uses a weighted safety score. It never uses dose weight, mushroom weight, or consumption amount.
Risk Score = role hazard points + task hazard points + symptom points + fatigue points + sleep penalty + heat points + supervision penalty + driving penalty + emergency penalty + PPE penalty + time-since-exposure risk.
Risk Levels: 0 to 24 is low. 25 to 44 is medium. 45 to 64 is high. 65 to 100 is critical.
How To Use This Calculator
- Select the reported exposure type.
- Enter the hours since the reported exposure.
- Choose the role hazard and current task hazard.
- Enter symptoms, fatigue, sleep, heat, supervision, driving, emergency pressure, and PPE status.
- Press the calculate button.
- Review the result above the form.
- Use CSV or PDF buttons for recordkeeping.
- Follow company policy and competent supervision first.
Example Data Table
| Case | Exposure | Hours Since | Task | Symptoms | Expected Action |
|---|---|---|---|---|---|
| Planning duty | None | 0 | Office planning | None | Follow standard controls |
| Uncertain worker | Unknown | 10 | General site work | Mild | Supervisor review needed |
| High hazard task | Reported mushroom exposure | 8 | Lift operation | Moderate | No hazardous work |
| Fatigue case | None | 0 | Hot work | None | Manage fatigue first |
Construction Impairment Risk Awareness
Construction work depends on balance, judgment, timing, and communication. A worker who feels altered, dizzy, anxious, sleepy, confused, or unusually confident can create serious jobsite danger. This calculator is designed for safety screening only. It does not recommend any mushroom amount, substance amount, or personal dose. It focuses on work readiness after reported exposure, fatigue, or symptoms.
Why This Tool Fits Construction
Construction sites contain ladders, lifts, cranes, saws, scaffolds, live circuits, hot work, trenches, and moving vehicles. These hazards require clear attention. Even mild impairment can raise the chance of a fall, struck by event, caught between incident, electrical mistake, or poor communication. A supervisor should treat uncertain readiness as a stop work concern.
What The Score Means
The calculator combines task hazard, role hazard, time since exposure, current symptoms, fatigue, sleep, heat stress, and supervision. A low score does not prove that work is safe. It only means the entered risk factors appear lower. Medium results suggest reassignment to simple, nonhazardous duties. High or critical results suggest no hazardous work, no driving, no equipment operation, and direct supervisor review.
Safe Use Principles
Use this page before assigning risky tasks. Enter honest values. Update the form when symptoms change. Do not use it to justify working while impaired. Do not use it to estimate how much of any substance someone can take. Construction safety should follow company policy, local law, medical advice, and site rules. When doubt remains, choose rest, transport support, medical help, or a sober qualified replacement.
Recordkeeping Benefits
The CSV and PDF buttons help create a simple note for safety files. They can support toolbox talks, near miss reviews, and supervisor decisions. The record should protect privacy and avoid unnecessary personal details. Focus on observable readiness, selected work controls, and the final action.
Important Limits
Scores depend on the values entered, so false inputs create false comfort. People can react differently to the same exposure. Mixing substances, dehydration, panic, low blood sugar, or lack of sleep can worsen impairment. For emergencies, severe distress, chest pain, injury, or unsafe behavior, stop work and seek qualified help immediately. When questions continue, remove the worker from hazardous activity until competent review is complete and documented.
FAQs
Does this calculator recommend a mushroom dose?
No. It does not calculate or recommend any mushroom amount. It only estimates construction-site readiness risk from reported exposure, symptoms, hazards, fatigue, and work conditions.
Why is this listed for construction?
Construction tasks often involve heights, equipment, vehicles, power tools, heat, trenches, and live energy. These hazards require alert judgment and fast response.
Can a low score prove someone is safe?
No. A low score only reflects the entered data. Site policy, supervisor judgment, medical advice, and legal requirements should always control work decisions.
What should happen after a high result?
Remove the worker from hazardous tasks. Avoid driving, equipment operation, climbing, hot work, electrical work, and confined spaces. Get competent supervision.
Why does the tool include symptoms?
Symptoms are observable risk signals. Dizziness, confusion, anxiety, poor coordination, fatigue, or unusual behavior can increase construction accident risk.
Can I use this for company records?
Yes, but keep records limited and respectful. Use the CSV or PDF for safety action notes, not unnecessary personal details.
Does time since exposure remove all risk?
No. Time helps estimate uncertainty, but symptoms, fatigue, mixed exposure, dehydration, and site hazards can keep risk elevated.
What if the worker seems distressed?
Stop work and seek qualified help. Use medical support, emergency procedures, safe transport, and supervisor response when distress or unsafe behavior appears.