"noxious trade" meaning in English

{
  "forms": [
    {
      "form": "noxious trades",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "noxious trade (plural noxious trades)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "Any profession that was disreputable because it caused a great deal of pollution. The archetypal example is the tannery."
      ],
      "id": "en-noxious_trade-en-noun-KyOTUvKm",
      "links": [
        [
          "profession",
          "profession"
        ],
        [
          "disreputable",
          "disreputable"
        ],
        [
          "pollution",
          "pollution"
        ],
        [
          "tannery",
          "tannery"
        ]
      ],
      "raw_glosses": [
        "(historical) Any profession that was disreputable because it caused a great deal of pollution. The archetypal example is the tannery."
      ],
      "tags": [
        "historical"
      ]
    }
  ],
  "word": "noxious trade"
}

{
  "forms": [
    {
      "form": "noxious trades",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "noxious trade (plural noxious trades)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with historical senses"
      ],
      "glosses": [
        "Any profession that was disreputable because it caused a great deal of pollution. The archetypal example is the tannery."
      ],
      "links": [
        [
          "profession",
          "profession"
        ],
        [
          "disreputable",
          "disreputable"
        ],
        [
          "pollution",
          "pollution"
        ],
        [
          "tannery",
          "tannery"
        ]
      ],
      "raw_glosses": [
        "(historical) Any profession that was disreputable because it caused a great deal of pollution. The archetypal example is the tannery."
      ],
      "tags": [
        "historical"
      ]
    }
  ],
  "word": "noxious trade"
}