Perchlorate Soil Toxicity Mars Regolith Concentration Risk Classifier
Measured soil-perchlorate mass fraction compared only with independently applicable research/exposure screen. No universal Martian soil toxicity, human exposure threshold, habitability or safe handling certification.
Description
Perchlorate measurements need a stated mass-fraction and sampling basis.
Perchlorate measurements need a stated mass-fraction and sampling basis.1
A supplied screen comparison does not independently establish organism or human safety. Use this tool to calculate the stated observation or conditional model from supplied measurements.
When to use Perchlorate Soil Toxicity Mars Regolith Concentration Risk Classifier
Use this tool to calculate the stated observation or conditional model from supplied measurements. Establish the observation or experimental context, reference/calibration source, unit basis and adopted model assumptions.
How to use Perchlorate Soil Toxicity Mars Regolith Concentration Risk Classifier and understand its results
- Establish the observation or experimental context, reference/calibration source, unit basis and adopted model assumptions.
- Enter independentlyMeasuredPerchlorateMassFraction, callerIndependentlyApplicableScreenFraction, using the field meanings and rules below, then run the tool.
- Read result.signedThresholdExcessFraction, result.exceedsCallerScreen. Interpret each field using the units, signs and evidence rules below.
- If input validation fails, correct the reported field and run again. Before applying a successful result, check the stated reference scope, units, assumptions and any retained unknown evidence.
| Input field | Meaning | Value type | Requirement |
|---|---|---|---|
| independentlyMeasuredPerchlorateMassFraction | Independently measured perchlorate mass fraction | number | Required |
| callerIndependentlyApplicableScreenFraction | Caller independently applicable screen fraction | number | Required |
Require measured and screen mass fractions in inclusive 0–1. Return measured−screen and a strict measured>screen flag. Equality does not exceed; no screen value or toxicological model is supplied.
signedExcessFraction=measuredFraction−callerScreenFraction; exceeds=(measured>screen) Apply the field units and exact ordering, boundary and evidence rules above.
| Output field | Meaning | Value type |
|---|---|---|
| result | Structured result containing the calculation or selected reference fields below | object |
| result.signedThresholdExcessFraction | Signed Threshold Excess Fraction; use the units, sign convention and calculation stated above | number |
| result.exceedsCallerScreen | Exceeds Caller Screen; use the units, sign convention and calculation stated above | boolean |
{
"input": {
"independentlyMeasuredPerchlorateMassFraction": 0.01,
"callerIndependentlyApplicableScreenFraction": 0.005
},
"output": {
"result": {
"signedThresholdExcessFraction": 0.005,
"exceedsCallerScreen": true
}
}
}Limitations and assumptions
A supplied screen comparison does not independently establish organism or human safety. Results depend on the independently established measurement basis and the exact model assumptions above.
Every listed input requires an explicit value. Unexpected fields, incorrect value types, nonfinite numbers and sparse numeric arrays fail validation; tool-specific bounds and alignment rules apply as described above. Extremely large inputs or outputs can also be rejected. An input error is distinct from a successful calculation that reports a false comparison or retains unknown evidence.
Alternative or Complementary methods
Use Recurring Slope Lineae Brine Flow Viscosity Consistency Check to examine a related aspect: An ideal laminar film model relates slope and film properties to mean flow speed.
Use Brine Water Activity aw Habitability Threshold 0.6 Checker where its separate inputs and scope apply: Water activity expresses an adopted thermodynamic measure on a fraction basis.
References
Similar or alternative tools
- Recurring Slope Lineae Brine Flow Viscosity Consistency Check
An ideal laminar film model relates slope and film properties to mean flow speed.
- Brine Water Activity aw Habitability Threshold 0.6 Checker
Water activity expresses an adopted thermodynamic measure on a fraction basis.