SunStar Pangasinan health exec reminds public versus heat stroke The heat index in the province of Pangasinan as of 2 p.m. on May 12, 2021 reaches 52 degrees Celsius. The heat index between 41 and 54 degrees Celsius is considered dangerous. (PNA Photo) + May 13, 2021 LINGAYEN, Pangasinan – The Provincial Health Office (PHO) has reminded Pangasinenses to stay indoors or in shaded areas, remain well hydrated, and avoid strenuous activities amid dangerously high heat index being experienced in the province. In an interview on Wednesday, PHO chief Dr. Anna Ma. Teresa de Guzman said individuals, especially those with heavy work and workers under the direct heat of the sun like construction workers and traffic enforcers, should regularly drink sufficient amounts of water.