It might be contaminated from the factory where the drinking water is manafactured (in bottles), either from chemicals used in the factory, or poor sanitation. It might also contaminated because of the source of water, and poor filtering and cleaning that is supossed to get rid of those pollutants in water sources.
Absolutely, in fact any food that has had possible contamination from sewage should be destroyed. Additionally, you should handle the contaminated food with disposable gloves. The entire area where anything with even suspected contact with the sewage, either directly or via secondary contact - i.e. the contaminated food was sitting there - will need to be sterilized. There are numerous deadly pathogens, not just E.coli but certain varieties of hepatitis (which can destroy your liver which is fatal), plus numerous others that can be spread from contact with human waste. Health Departments will typically shut down an eating establishment, for example, that has backed up sewage in the basement. You should contact your local health department for guidance in sterilization requirements if you deal with food in a professional setting. While a bleach solution will kill most pathogens, some are immune. Further guidance can be found at the Centers of Disease Control website.
There are many harmful bacteria, viruses, and other micro-organisms that thrive in water. If they come in contact with food, those micro-organisms then transfer to the foodstuffs.
i have contaminate the food by putting my dirty hand on the food.
it should not be in water with any other food (because it may contaminate with salmonella)
No, amoebic dysentery is not infectious. It is transmitted through contaminate food or water.
Two reasons: your food could contaminate your experiment, and the experiment could contaminate your food.
If it is open, the acid will contaminate it.
Yes
If it gets into food yes! It is poisonous.
I can give you several sentences.The pollution will contaminate that water!Don't contaminate the salsa by double-dipping.The evil scientist plans to contaminate the ocean.
yes it does
Chemicals in the lab might contaminate the food - causing poisoning. The food might contaminate an experiment - making the results invalid.
Sure it does buddy... because carbon emissions and burning fossil fuels contaminate air within our ecosystem and toxic waste such as plastic bags nearby river banks and lakes not only contaminate water but also kill numerous aquatic animals. Air and water together radiate different parts of our ecosystem and affect the growth of food. As a result, food contamination is likely to occur!
pests contaminate food by landing on the food and leaving there waste ,if you may, like flies whenever they land they vomit, leave waste, and urine. pests also contaminate food just by carrying diseases.