The method used to test or evaluate the discharge may not be applicable to the situation.  A lack of available data on the location of storm drains and sanitary sewers, especially in older industrial facilities, may make identifying an illicit connection difficult.
Knowledge center. Angioedema, also known as Quincke's edema is the rapid edema (swelling) of the deep layers of skin-the dermis, subcutaneous tissue, mucosa and submucosal tissues.Although similar to urticaria (hives), urticaria only occurs in the upper dermis.A significant number of patients have both urticaria and angioedema.nowledge center. Angioedema, also known as Quincke's edema is the rapid edema (swelling) of the deep layers of skin-the dermis, subcutaneous tissue, mucosa and submucosal tissues.
Angioedema, first described in 1586,is usually defined by pronounced swelling of the deep dermis, subcutaneous or submucosal tissue, or mucous membranes as a result of vascular leakage.Other terms, such as giant urticaria,Quincke edema,and angioneurotic edema,have also been used in the past to describe this condition.