Romano-Celtic temple purpose within the ritual environment of the temple. The temple at Woodeaton produced evidence for multiple hearths within the temple superstructure, suggesting the use of fire within the religious worship at that site. A priest would perform religious ceremonies within the temple or outside in the enclosure, although the exact daily role they played in Romano-Celtic temples is not well understood. Performing sacrifice, prayers, and overseeing festivals are key features of priesthoods in the Roman Empire. In Aquae Sulis (modern Bath, England), an altar was dedicated by a "haruspex"; this religious position may have been utilised elsewhere in Britannia. Fragments
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