# Air Nonattainment Check - Western Basins

**Use case:** 

Ready-to-run EPA nonattainment screen for 4 Western basin metros: ozone and PM NAAQS status for industrial and energy air-permitting review.

## Input

```json
{
  "assets": [
    {
      "lat": 39.74,
      "lon": -104.98,
      "label": "Denver, CO"
    },
    {
      "lat": 40.76,
      "lon": -111.89,
      "label": "Salt Lake City, UT"
    },
    {
      "lat": 36.17,
      "lon": -115.14,
      "label": "Las Vegas, NV"
    },
    {
      "lat": 36.74,
      "lon": -119.79,
      "label": "Fresno, CA"
    }
  ],
  "pollutants": [],
  "includeMaintenance": true,
  "nearbyRadiusKm": 40,
  "maxAssets": 500
}
```

## Output

```json
{
  "asset_label": {
    "label": "Asset label",
    "format": "string"
  },
  "verdict": {
    "label": "Verdict",
    "format": "string"
  },
  "in_nonattainment": {
    "label": "In nonattainment area",
    "format": "boolean"
  },
  "in_maintenance": {
    "label": "In maintenance area",
    "format": "boolean"
  },
  "in_revoked_standard_area": {
    "label": "In a revoked-NAAQS designated area",
    "format": "boolean"
  },
  "nsr_psd_permitting_flag": {
    "label": "NSR/PSD permitting-risk flag",
    "format": "boolean"
  },
  "permitting_pathway": {
    "label": "Permitting pathway",
    "format": "string"
  },
  "worst_classification": {
    "label": "Worst classification",
    "format": "string"
  },
  "worst_classification_tier": {
    "label": "Worst classification tier",
    "format": "string"
  },
  "nsr_major_source_threshold_tpy": {
    "label": "NNSR major-source threshold (tpy)",
    "format": "number"
  },
  "nsr_offset_ratio": {
    "label": "NNSR minimum offset ratio",
    "format": "string"
  },
  "pollutants_nonattainment": {
    "label": "Nonattainment pollutants",
    "format": "array"
  },
  "matched_area_count": {
    "label": "Matched area count",
    "format": "integer"
  },
  "screen_complete": {
    "label": "Screen complete",
    "format": "boolean"
  },
  "note": {
    "label": "Note",
    "format": "string"
  }
}
```

## About this Actor

This example demonstrates how to use [EPA Nonattainment Air Permit Screener — NSR/PSD Siting Risk](https://apify.com/malonestar/epa-nonattainment-air-permit-screener) with a specific input configuration. Visit the [Actor detail page](https://apify.com/malonestar/epa-nonattainment-air-permit-screener) to learn more, explore other use cases, and run it yourself.