Shagreen ray Shagreen ray The shagreen ray or shagreen skate or fuller's ray ("Leucoraja fullonica") is a species of skate in the family Rajidae. This ray is found in the eastern Atlantic Ocean, from Murmansk, Russia through Norway, southern Iceland, the Faroe Islands, the Celtic Sea, the northern North Sea and Skagerrak, to northern Morocco, including (infrequently) the western Mediterranean Sea and the Madeira Islands. It is absent from the shallow waters off England and Wales. Shagreen is a form of roughened untanned leather, typically dyed green and commonly made of the skins of sharks and rays. The common name "fuller's ray"
Tanning (leather) most common source of protein). Up to 25% of the chickens in Bangladesh contained harmful levels of hexavalent chromium, adding to the national health problem load. Chromium is not solely responsible for these diseases. Methyl isothiazolinone, which is used for microbiological protection (fungal or bacterial growth), causes problems with the eyes and skin. Anthracene, which is used as a leather tanning agent, can cause problems in the kidneys and liver and is also considered a carcinogen. Formaldehyde and arsenic, which are used for leather finishing, cause health problems in the eyes, lungs, liver, kidneys, skin, and lymphatic system and are