====== wūshuǐ: 污水 - Sewage, Wastewater, Polluted Water ======
===== Quick Summary =====
  * **Keywords:** wūshuǐ, 污水, sewage in Chinese, wastewater Chinese, polluted water Chinese, how to say dirty water in Mandarin, environmental pollution China, wushui meaning, industrial waste water, domestic sewage.
  * **Summary:** Learn the essential Chinese noun **污水 (wūshuǐ)**, which translates to sewage, wastewater, or polluted water. This entry breaks down the characters 污 (wū) and 水 (shuǐ), explores its critical role in modern China's environmental discussions, and contrasts it with more colloquial terms like "脏水 (zāng shuǐ)". With 10 practical example sentences, you'll understand how to use 污水 in contexts ranging from urban infrastructure to environmental policy.
===== Core Meaning =====
<hanziwriter>污水</hanziwriter>
  * **Pinyin (with tone marks):** wū shuǐ
  * **Part of Speech:** Noun
  * **HSK Level:** HSK 5
  * **Concise Definition:** Water that has been contaminated by waste, pollutants, or human activity; sewage or wastewater.
  * **In a Nutshell:** 污水 is the standard and somewhat formal term for any water that has been made unclean, particularly by industrial, agricultural, or domestic waste. Think of it as the go-to word for water that needs to be treated or managed due to its contaminants. It's a direct, literal, and unambiguous term.
===== Character Breakdown =====
  * **污 (wū):** This character means "dirty," "polluted," or "filthy." It's composed of the water radical `氵` (shuǐ) on the left, indicating its meaning is related to water or liquid. The right side, `于` (yú), provides the sound. You can think of it as water that has been defiled or contaminated.
  * **水 (shuǐ):** This is one of the most basic Chinese characters, meaning "water." It's a pictograph that originally depicted flowing water or a river.
  * The two characters combine literally and logically to mean "dirty water." The specific connotation of **污水 (wūshuǐ)**, however, leans towards contamination from a source (like a factory or sewer system) rather than just being murky.
===== Cultural Context and Significance =====
  * The term **污水 (wūshuǐ)** is deeply embedded in the narrative of modern China's development. With rapid industrialization and urbanization over the past few decades, managing **污水** has become a paramount national challenge and a frequent topic in news, policy, and public discourse. Words like **污水处理 (wūshuǐ chǔlǐ)** (sewage treatment) and **污水排放 (wūshuǐ páifàng)** (sewage discharge) are central to the country's environmental protection (`环保 - huánbǎo`) efforts.
  * **Comparison to Western Concepts:** In English, we often differentiate between "sewage" (specifically from toilets and drains), "wastewater" (more general, from homes and industry), and "polluted water" (a broader environmental state). **污水 (wūshuǐ)** is a powerful umbrella term that covers all of these concepts. While you might call factory runoff "industrial wastewater" and toilet water "sewage" in English, both would be referred to as **污水** in a formal or technical Chinese context. This makes it a highly efficient and common term in discussions about urban planning and environmental science.
===== Practical Usage in Modern China =====
  * **污水** is used in both formal and everyday contexts, though it carries a slightly more technical or serious tone than its colloquial cousin, `脏水 (zāng shuǐ)`.
  * **Formal/Technical Use:** This is its most common usage. It appears constantly in government documents, news reports about environmental issues, scientific papers, and signs near industrial sites or water treatment facilities.
    * Example: **工业污水 (gōngyè wūshuǐ)** - industrial wastewater
    * Example: **生活污水 (shēnghuó wūshuǐ)** - domestic sewage
  * **Informal Use:** In daily conversation, people might use it to describe a particularly foul puddle or a backed-up drain, but the more common word for simple "dirty water" (like a muddy puddle) would be `脏水 (zāng shuǐ)`. Using **污水** emphasizes a level of contamination or filth beyond just dirt.
  * **Connotation:** The term is exclusively negative, implying contamination, pollution, and a potential health hazard.
===== Example Sentences =====
  * **Example 1:**
    * 工厂不能直接把**污水**排入河流。
    * Pinyin: Gōngchǎng bùnéng zhíjiē bǎ **wūshuǐ** páirù héliú.
    * English: Factories cannot directly discharge wastewater into the river.
    * Analysis: A common sentence found in environmental regulations and news reports. It demonstrates the formal usage of the term.
  * **Example 2:**
    * 这个城市正在建一个新的**污水**处理厂。
    * Pinyin: Zhège chéngshì zhèngzài jiàn yīgè xīn de **wūshuǐ** chǔlǐ chǎng.
    * English: This city is building a new sewage treatment plant.
    * Analysis: This shows how **污水** is a key term in urban infrastructure and public works.
  * **Example 3:**
    * 饮用被**污水**污染的水源会导致严重的疾病。
    * Pinyin: Yǐnyòng bèi **wūshuǐ** wūrǎn de shuǐyuán huì dǎozhì yánzhòng de jíbìng.
    * English: Drinking from water sources contaminated by sewage can lead to serious illnesses.
    * Analysis: This sentence highlights the public health implications associated with **污水**.
  * **Example 4:**
    * 暴雨过后，下水道里的**污水**都溢出来了。
    * Pinyin: Bàoyǔ guòhòu, xiàshuǐdào lǐ de **wūshuǐ** dōu yì chūlái le.
    * English: After the storm, the sewage from the sewers all overflowed.
    * Analysis: A practical example describing a common urban problem.
  * **Example 5:**
    * 政府对**污水**排放制定了更严格的标准。
    * Pinyin: Zhèngfǔ duì **wūshuǐ** páifàng zhìdìngle gèng yángé de biāozhǔn.
    * English: The government has established stricter standards for wastewater discharge.
    * Analysis: This illustrates the use of **污水** in the context of policy and law.
  * **Example 6:**
    * 这种新技术可以有效地净化生活**污水**。
    * Pinyin: Zhè zhǒng xīn jìshù kěyǐ yǒuxiào de jìnghuà shēnghuó **wūshuǐ**.
    * English: This new technology can effectively purify domestic sewage.
    * Analysis: Here, **污水** is used in a scientific or technological context. Note the compound `生活污水` (domestic sewage).
  * **Example 7:**
    * 记者正在调查那家化工厂非法排放**污水**的事件。
    * Pinyin: Jìzhě zhèngzài diàochá nà jiā huàgōngchǎng fēifǎ páifàng **wūshuǐ** de shìjiàn.
    * English: The reporter is investigating the incident of that chemical plant illegally discharging wastewater.
    * Analysis: This shows how the term is frequently used in journalism related to corporate and environmental accountability.
  * **Example 8:**
    * 别靠近那条河，里面全是工厂排出的**污水**。
    * Pinyin: Bié kàojìn nà tiáo hé, lǐmiàn quán shì gōngchǎng páichū de **wūshuǐ**.
    * English: Don't go near that river; it's full of wastewater discharged from factories.
    * Analysis: A simple, direct warning that could be used in everyday conversation.
  * **Example 9:**
    * 农业**污水**也是造成水体富营养化的主要原因之一。
    * Pinyin: Nóngyè **wūshuǐ** yěshì zàochéng shuǐtǐ fùyíngyǎnghuà de zhǔyào yuányīn zhīyī.
    * English: Agricultural wastewater is also one of the main causes of eutrophication in water bodies.
    * Analysis: This example introduces a more specific type, `农业污水` (agricultural wastewater), and connects it to a specific environmental problem.
  * **Example 10:**
    * 居民们抱怨附近工厂的**污水**气味太难闻了。
    * Pinyin: Jūmínmen bàoyuàn fùjìn gōngchǎng de **wūshuǐ** qìwèi tài nánwén le.
    * English: The residents complained that the smell of the sewage from the nearby factory was terrible.
    * Analysis: This sentence connects **污水** to its direct, sensory impact on people's lives.
===== Nuances and Common Mistakes =====
  * **污水 (wūshuǐ) vs. 脏水 (zāng shuǐ):** This is the most common point of confusion for learners.
    * **污水 (wūshuǐ):** More formal, technical. Refers to water with chemical, industrial, or biological contaminants (sewage, factory runoff). You wouldn't call a rain puddle **污水**.
    * **脏水 (zāng shuǐ):** More colloquial, general. Means "dirty water." It can be used for anything from water you just washed vegetables in, to a muddy puddle, to a backed-up drain. It's less severe than **污水**.
  * **Common Mistake:** Pointing to a muddy puddle after it rains and saying:
    * **Incorrect:** `你看，地上有一滩污水。` (Nǐ kàn, dìshang yǒu yī tān wūshuǐ.)
    * **Why it's wrong:** This sounds overly dramatic and technical. A puddle is just dirty, not necessarily chemically or biologically contaminated in the way **污水** implies.
    * **Correct:** `你看，地上有一滩脏水。` (Nǐ kàn, dìshang yǒu yī tān zāng shuǐ.) or `...有一滩泥水` (...yǒu yī tān níshuǐ - muddy water).
===== Related Terms and Concepts =====
  * [[脏水]] (zāng shuǐ) - The more colloquial and general term for "dirty water."
  * [[废水]] (fèi shuǐ) - "Wastewater," often used interchangeably with **污水**, especially for industrial waste.
  * [[水污染]] (shuǐ wūrǎn) - The abstract concept of "water pollution." **污水** is a primary cause of **水污染**.
  * [[下水道]] (xiàshuǐdào) - "Sewer" or "drain," the system that transports **污水**.
  * [[污水处理厂]] (wūshuǐ chǔlǐ chǎng) - "Sewage treatment plant," a facility built to process **污水**.
  * [[环保]] (huánbǎo) - "Environmental protection," the broader field and social movement where the management of **污水** is a major topic.
  * [[排放]] (páifàng) - "To discharge" or "to emit." This verb is frequently used with **污水** (e.g., `排放污水`).
  * [[净化]] (jìnghuà) - "To purify." The process of turning **污水** back into clean water is a form of **净化**.
  * [[污染物]] (wūrǎnwù) - "Pollutant(s)," the specific harmful substances within the **污水**.
  * [[自来水]] (zìláishuǐ) - "Tap water," the direct antonym of **污水** in a household context.