Sulis etymology, as well as several other characteristics, such as the association with sight, civic law, and epithets relating to light, Sulis has been interpreted as a solar deity, at least in pre-Roman times. Some researchers have further suggested a role as the "de facto" Celtic solar deity, the associated Sulevia and similar names being the goddess's attestations elsewhere. Sulis has a number of modern-day worshipers among the Wiccan and Pagan communities. As of 1998, some people still deposited offerings in the waters of the Roman baths. Sulis In localised Celtic polytheism practised in Britain, Sulis was a deity worshipped at
Aphanizomenon flos-aquae toxic chemicals released when cells die. Once released (lysed), and ingested, these toxins can damage liver and nerve tissues in mammals. In areas where water quality is not closely monitored, the World Health Organization has assessed toxic algae as a health risk, citing the production of anatoxin-a, saxitoxins, and cylindrospermopsin. Dogs have been reported to have become ill or have fatal reactions after swimming in rivers and lakes containing toxic "A. flos-aquae". Microcystin toxin has been found in all 16 samples of "A. flos-aquae" products sold as food supplements in Germany and Switzerland, originating from Lake Klamath: 10 of 16