65879
In particular , the SCHER addresses questions in relation to new and existing chemicals , the restriction and marketing of dangerous substances , biocides , waste , environmental contaminants , plastics and other materials used for water pipe work ( e.g. new organic substances ) , drinking water , indoor and ambient air quality .
 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