on this link, the institudo estadual do ambiente (inea)provides the suitability of several beaches in niterói, including praia de itacoatiara. constantly updated, the red flags mean that swimming is not advisable, green flags mean waters are clean, and yellow flags suggest using own judgment. on the following links early morning shots of the beach are posted daily, showing water conditions on the eastern edge, in the center, and on the west border. any of rio's beaches may have polluted waters within 24 to 48 hours following heavy rains.
