# EJ Screening AirToxScreen Cancer Risk Check

**Use case:** 

Environmental-justice cancer-risk screen for Boyle Heights LA, Chicago's East Side and Denver: EPA AirToxScreen risk and pollutant source breakdown.

## Input

```json
{
  "assets": [
    {
      "lat": 34.0339,
      "lon": -118.2076,
      "label": "Boyle Heights, Los Angeles, CA"
    },
    {
      "lat": 41.6528,
      "lon": -87.6044,
      "label": "East Side, Chicago, IL - industrial corridor"
    },
    {
      "lat": 39.7392,
      "lon": -104.9903,
      "label": "Denver, CO"
    }
  ],
  "includeAllPollutants": false,
  "topPollutantsCount": 10,
  "maxAssets": 200
}
```

## Output

```json
{
  "asset_label": {
    "label": "Asset label",
    "format": "string"
  },
  "match_status": {
    "label": "Match status",
    "format": "string"
  },
  "tract_geoid": {
    "label": "Tract GEOID (2010)",
    "format": "string"
  },
  "state": {
    "label": "State",
    "format": "string"
  },
  "county": {
    "label": "County",
    "format": "string"
  },
  "total_cancer_risk_per_million": {
    "label": "Total cancer risk (per million)",
    "format": "number"
  },
  "percentile_context": {
    "label": "National percentile context",
    "format": "object"
  },
  "top_pollutants": {
    "label": "Top contributing pollutants",
    "format": "array"
  },
  "assessment_vintage": {
    "label": "AirToxScreen assessment vintage",
    "format": "integer"
  },
  "tract_geography_vintage": {
    "label": "Tract geography vintage",
    "format": "integer"
  },
  "lookup_error": {
    "label": "Lookup error",
    "format": "string"
  }
}
```

## About this Actor

This example demonstrates how to use [EPA AirToxScreen Cancer Risk Screener - Census Tract Air Toxics](https://apify.com/malonestar/epa-airtoxscreen-cancer-risk-screener) with a specific input configuration. Visit the [Actor detail page](https://apify.com/malonestar/epa-airtoxscreen-cancer-risk-screener) to learn more, explore other use cases, and run it yourself.


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This Task's input is already configured above — use it as-is rather than inventing a new one.

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For full API examples (JavaScript, Python, CLI, MCP, OpenAPI), see this Task's Actor page: https://apify.com/malonestar/epa-airtoxscreen-cancer-risk-screener.md

For more details, see Apify documentation as [Markdown index](https://docs.apify.com/llms.txt) and [Markdown full-text](https://docs.apify.com/llms-full.txt).