A Boil Water Notice is a public announcement advising water system users that they should boil their tap water for drinking and other domestic purposes. It is intended to protect the publics’ health from waterborne infectious agents that could be present in the community’s drinking water supply.
建议使用开水来破坏可能存在于水中的病原微生物。沸水一分钟迅速破坏了病原微生物，例如Salmonella，，，，Cryptosporidium，，，，Hepatitis AandNorovirus。
很难估计与尚未煮沸的水有关的健康风险。发出通知是因为存在条件使得不可能在不先煮沸的情况下确保水的安全。如果没有发生实际污染或存在很高的病原体，风险可能会很低。但是，您可以相信将自来水煮沸一分钟足以破坏水中存在的任何病原体。
It is important to note that Boil Water Notices are specific to microbiological threats. They are not appropriate to address threats from chemical contamination. Boiling chemically contaminated water will only result in the chemical becoming more concentrated or release the chemical into the air where it could be inhaled. In such cases a different kind of Notice would be used.
是的。这些人包括任何免疫系统尚未完全发育或免疫系统承受压力的人。这些人包括婴儿，少于两岁的儿童，孕妇，老年人，免疫损害的人和已经患有疾病的个体。有关更多信息，请访问以下内容：
Water can become contaminated in a variety of ways. Some of these include:
- 大雨洗净水源
- 意外溢出的供水
- Breakdown of the disinfection/treatment process
- 供水电源中断
- 故意破坏
- 饮用水管之间的供水系统中的交叉连接
开水通知的最常见原因是高浊度，微生物学污染或消毒不足。
Turbidity——概括地云雾水高er the turbidity. It is an indirect measure of particulates in the water. Turbidity can result from clay, silt, organic matter, plankton and micro-organisms.
High turbidity can interfere with the disinfection of drinking water and be a source of disease-causing micro-organisms.
Guidelines for Canadian Drinking Watery- Turbidity
Microbiological Contamination
微生物污染可能包括细菌，病毒和原生动物寄生虫，例如贾迪亚（海狸发烧）和Cryptosporidium。Health effects from drinking contaminated water may include nausea, vomiting and diarrhea.
消毒不足
当消毒/处理过程中的故障允许未经处理的水进入水分配系统时，可能会发生消毒。
有关更多信息，请访问在开水通知期间该怎么办。
否。不需要煮沸用于沐浴，洗澡，洗衣服，洗手间和地板的水。在洗澡期间，应警告幼儿吞咽澡水。另外，可以将幼儿沐浴。
是的，您仍然应该煮水。家庭风格的治疗单元通常并非旨在破坏所有致病病毒，细菌和原生动物。如果制造商不能保证该设备安全使用，则应将水煮沸。
市场上有许多类型的单元，每种单元旨在解决特定的水质问题。建议您与单元的制造商联系，以确切知道您的单元可以做什么。
It depends on how the water is treated. Vending machines that use local water would only be acceptable if the vending machine can kill pathogens that might be present in the water. Check with the store or manufacturer to see if the unit is capable of providing water that is safe to drink.
警告标志应发布在无法提供安全水的自动售货机上。或者，应该关闭机器。
Health Canada suggests that microwave ovens can be used to boil water using microwave-safe containers but cautions against formingsuperheated water.Superheated水在沸点上方加热而没有蒸汽的形成，并可能导致手和脸部燃烧。使用微波时，加拿大卫生部建议在容器中插入玻璃棒，木制或塑料汤匙，以防止形成过热的水。
是的，但是在所有情况下都是不可能或实用的。有关更多信息，请访问在开水通知期间该怎么办。
Yes, you and your family may continue to shower or bathe as long as no water is swallowed. Parents and caregivers may want to consider sponge bathing children or using a hand held shower head while not spraying the face in order to prevent the risk of children ingesting the water.
