83976
This disorder affects workers in smelters , in populations whose drinking water contains high levels of arsenic ( 0.3 – 0.4 " ppm ) , and in patients treated for long periods with arsenic-based pharmaceuticals .
 drinking water
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 drinking water