Atmospheric CO2 and Particulates · 大气二氧化碳与颗粒物
| English | 中文 | Pinyin · 拼音 |
|---|---|---|
| carbon dioxide/ˈkɑːbən daɪˈɒksaɪd/ | 二氧化碳 | èr yǎng huà tàn |
| particulates/pəˈtɪkjʊleɪts/ | 颗粒物 | kē lì wù |
| greenhouse gas/ˈɡriːnhaʊs ɡæs/ | 温室气体 | wēn shì qì tǐ |
| Particulate matter/pəˈtɪkjʊleɪt ˈmætə/ | 颗粒物 | kē lì wù |
| micrometres/ˈmaɪkrəʊmiːtəz/ | 微米 | wēi mǐ |
Two pollutants from one fire
- Burning fossil fuels adds two big pollutants to the air.
- One is a gas: carbon dioxide 二氧化碳 (CO2).
- The other is tiny solid bits: particulates 颗粒物.
- They cause very different kinds of harm.
一场火里的两种污染物
- 燃烧化石燃料给空气添加两种大污染物。
- 一种是气体:二氧化碳(carbon dioxide,CO2)。
- 另一种是微小的固体碎片:颗粒物(particulates)。
- 它们造成非常不同的伤害。
Carbon dioxide warms the planet
- CO2 is an invisible gas — you cannot see or smell it.
- It is the main greenhouse gas 温室气体.
- It traps heat in the atmosphere, warming the climate.
- Every fossil fuel we burn adds more CO2 to the air.
二氧化碳使地球变暖
- CO2是看不见的气体——你看不见也闻不到它。
- 它是主要的温室气体(greenhouse gas)。
- 它把热量困在大气中,使气候变暖。
- 我们燃烧的每一份化石燃料都给空气添加更多CO2。
The main problem with rising atmospheric CO2 is that it… · 大气CO2上升的主要问题是它……
CO2 is the main greenhouse gas — it traps heat and drives global warming. · CO2是主要的温室气体——它困住热量并驱动全球变暖。
Particulates harm the lungs
- Particulate matter 颗粒物 is tiny solid and liquid bits.
- Soot, dust, and droplets float in the air.
- The smallest bits lodge deep in the lungs.
- They cause breathing problems, heart disease, and hazy air.
颗粒物损害肺
- 颗粒物(particulate matter)是微小的固体和液体碎片。
- 烟灰、尘埃和液滴漂浮在空气中。
- 最小的碎片深深卡在肺里。
- 它们造成呼吸问题、心脏病和雾蒙蒙的空气。
Carbon dioxide or particulates? · 二氧化碳还是颗粒物?
Sort each description under the pollutant it fits. · 把每个描述归到它适合的污染物之下。
Particulate matter is harmful mainly because it… · 颗粒物有害主要因为它……
Particulates are tiny enough to reach deep into the lungs, causing breathing and heart problems. · 颗粒物小到足以到达肺深处,造成呼吸和心脏问题。
The tiny solid and liquid bits floating in polluted air are called ____ matter. · 漂浮在污染空气中的微小固体和液体碎片叫做____物。
Particulate matter (PM) is the mix of tiny particles — soot, dust, droplets — in the air. · 颗粒物(PM)是空气中微小颗粒的混合物——烟灰、尘埃、液滴。
Size is everything for particulates
- Scientists sort particulates by size, like PM2.5 and PM10.
- The number is the width in micrometres 微米.
- Smaller particles (PM2.5) are the most dangerous.
- They slip past the body's defences and reach the deepest lungs.
大小对颗粒物至关重要
- 科学家按大小给颗粒物分类,比如PM2.5和PM10。
- 数字是以微米(micrometres)为单位的宽度。
- 更小的颗粒(PM2.5)最危险。
- 它们溜过身体的防御到达最深的肺。
Burning fossil fuels releases both CO2 and particulates. · 燃烧化石燃料同时释放CO2和颗粒物。
Combustion gives off CO2 gas and soot particles, so fossil fuels produce both pollutants. · 燃烧放出CO2气体和烟灰颗粒,所以化石燃料产生两种污染物。
Select all · 所有 true statements. · 选出所有正确说法。
CO2 warms the climate, particulates harm lungs, and both come from combustion. CO2 is an invisible gas. · CO2使气候变暖,颗粒物损害肺,两者都来自燃烧。CO2是看不见的气体。
Keep the two harms separate. CO2 is a climate problem — it's not poisonous to breathe at normal levels, but it traps heat and warms the whole planet. Particulates are a health problem — they don't warm the climate much, but breathing them damages your lungs and heart. Same source (burning), completely different danger.
把两种伤害分开。CO2是气候问题——它在正常水平吸入无毒,但它困住热量并使整个地球变暖。颗粒物是健康问题——它们不太使气候变暖,但吸入它们损害你的肺和心脏。同样的来源(燃烧),完全不同的危险。
Standing by a coal plant:
- The CO2 streaming from the stack is invisible and harmless to breathe right there — but it joins the atmosphere and nudges the whole planet warmer for centuries.
- The grey particulate haze around the same stack is the immediate health threat — breathe it daily and your lungs and heart suffer.
站在一座煤电厂旁边:
- 从烟囱涌出的CO2看不见,就在那里吸入无害——但它加入大气,把整个地球往更暖推动数个世纪。
- 同一座烟囱周围灰色的颗粒物雾是即时的健康威胁——每天吸入它,你的肺和心脏受损。
Burning fossil fuels releases carbon dioxide and particulate matter. CO2 is an invisible greenhouse gas — a climate problem that traps heat and warms the planet. Particulates are tiny bits (measured in micrometres, e.g. PM2.5) — a health problem that lodges in the lungs and heart. Same source, different dangers.
燃烧化石燃料释放二氧化碳和颗粒物。CO2是看不见的温室气体——一个气候问题,困住热量并使地球变暖。颗粒物是微小的碎片(以微米衡量,比如PM2.5)——一个健康问题,卡在肺和心脏里。同样的来源,不同的危险。