{
  "Header": [
    {
      "status": "Success",
      "request_time": "2026-04-16T19:21:51-04:00",
      "url": "https://aqs.epa.gov/data/api/qaPepAudits/byPQAO?email=test@aqs.api&key=test&param=88101&bdate=20170601&edate=20170630&pqao=0013",
      "rows": 2
    }
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      "pqao": "Al Dept Of Env Mgt",
      "monitoring_agency_code": "0013",
      "monitoring_agency": "Al Dept Of Env Mgt",
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      "state_code": "01",
      "county_code": "003",
      "site_number": "0010",
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      "unit": "Micrograms/cubic meter (LC)",
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      "pep_method_collection_desc": "BGI Models PQ200-VSCC or PQ200A-VSCC",
      "pep_concentration": 4.9,
      "monitor_method_code": "145",
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      "percent_difference": -12.24,
      "valid_pair": "Y",
      "date_of_last_change": "2017-09-22",
      "latitude": 30.497478,
      "longitude": -87.880258,
      "datum": "NAD83",
      "local_site_name": "FAIRHOPE, Alabama",
      "site_address": "FAIRHOPE HIGH SCHOOL, 1 PIRATE DRIVE, FAIRHOPE,  ALABAMA",
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      "csa": "Mobile-Daphne-Fairhope, AL",
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      "tribe_name": null
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      "monitor_concentration": 5.3,
      "percent_difference": -11.67,
      "valid_pair": "Y",
      "date_of_last_change": "2017-09-22",
      "latitude": 30.770181,
      "longitude": -88.087761,
      "datum": "NAD83",
      "local_site_name": "CHICKASAW",
      "site_address": "Iroquois and Azalea, CHICKASAW, MOBILE CO.,  ALABAMA",
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      "cbsa_code": "33660",
      "cbsa": "Mobile, AL",
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      "csa": "Mobile-Daphne-Fairhope, AL",
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    }
  ]
}