A review of the claim that the River Thames is the cleanest river in the world

thames.jsonld

{
  "@context": "https://schema.org",
  "@type": "ClaimReview",
  "claimReviewed": "The Thames is considered one of the cleanest rivers in the world.",
  "reviewBody": "This sounds like bollocks, mate",
  "itemReviewed": {
    "@type": "Claim",
    "author": {
      "@type": "Person",
      "name": "Lucy Williamson"
    },
    "appearance": {
      "@type": "Article",
      "url": "https://www.mylondon.news/news/zone-1-news/thames-cleanest-river-world-dirty-20601885",
      "headline": "The Thames is actually one of the cleanest rivers in the world with sharks living in it - here's why it looks so brown and dirty",
      "datePublished": "2022-08-29",
      "author": {
        "@type": "Person",
        "name": "Lucy Williamson"
      },
      "about": {
        "@type": "RiverBodyOfWater",
        "name": "River Thames",
        "subjectOf": {
          "@type": "WebPage",
          "url": "https://en.wikipedia.org/wiki/River_Thames"
        }
      }
    }
  },
  "reviewRating": {
    "@type": "Rating",
    "ratingValue": "2",
    "bestRating": "5",
    "worstRating": "1",
    "alternateName": "Probably bollocks"
  },
  "positiveNotes": "A claim such as the river being one of the healthiest city waterways might have been supportable?",
  "negativeNotes": "If the Thames was already one of the cleanest rivers in the world, I guarantee they wouldn't have spent £5 billion on the Tideway project.",
  "author": {
    "@type": "Person",
    "alternateName": "gwire"
  }
}