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  "version": "1.0.0",
  "checked": "2026-10-21",
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      "may_nitrate_tonnes": 90500,
      "may_phosphorus_tonnes": 15600,
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      "survey_source": "https://www.noaa.gov/news-release/larger-than-average-gulf-of-mexico-dead-zone-measured",
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      "survey_source": "https://www.noaa.gov/news-release/below-average-gulf-of-mexico-dead-zone-measured",
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      "survey_source": "https://www.noaa.gov/news-release/noaa-and-partners-announce-below-average-dead-zone-measured-in-gulf-of-mexico",
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      "survey_source": "https://www.noaa.gov/news-release/gulf-of-mexico-dead-zone-larger-than-average-scientists-find",
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      "survey_source": "https://www.noaa.gov/news-release/gulf-of-america-dead-zone-below-average-scientists-find",
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      "survey_source": "https://www.noaa.gov/news-release/noaa-and-partners-find-smaller-than-anticipated-hypoxic-zone-in-gulf-of-america",
      "observed_minus_forecast_sqmi": -5695,
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  "latest_five_year_mean_sqmi": 3754.4,
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      "min_mg_l": 0,
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      "start": "2019-06-16",
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  "latest_2026_service": {
    "received": 189,
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      "minutes": 1707
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    {
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      "endpoint": "Fish community / CPUE",
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    {
      "endpoint": "Diet composition",
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    {
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    {
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}