 Rhode Island officials are warning people to avoid contact with water in three ponds in Roger Williams Park as well as one in Portsmouth. This is due to high levels of blue-green algae blooms. Contact with this algae can irritate the skin, nose, eyes, and throat. It can cause nausea and vomiting as well as nervous system damage. Check the Rhode Island Department of Health and Environmental Management to see a list of the ponds and their current conditions.