• Nuclear explosion: thermal radiation damage(热辐射伤害), nuclear radiation damage(核辐射伤害), raBdioactive lifetime(放射性存留).3
2.Definition
• Nuclear pollution mainly refers to the
Light pollution
offices
illuminated sporting v
commercial propertifeasctories
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Maps
North America
North Africa
Middle
East Eur
op
e
Japan
航拍京津“不夜城”2010年12月，美国国家航 空航天局官方发布了一幅令人吃惊的太空照片 。国际空间站的航天员将镜头对准了中国华北 地区。照片中，北京和天津的城市夜景一览无 余，道路照明轮廓十分清晰，夹在两城之间的 廊B坊以及东北部几个开发区也有明亮的灯21光。 图中黑色区域主要是农田
environmental damage is caused by the release of radioactive material (核辐射), including nuclear radiation(核辐射), atomic dust(原子尘埃) and
other pollution caused by itself, as well as the secondary pollutant(次生污染) is brought by those
Secondly, more unbalanced distribution of annual rainfall. It makes drought time lengthen, and the phenomenon of spring drought connected with summer drought more common, and affects the vegetation restoration of arid and semi-arid regions.
• If the ultra dose of radiation persist in people's body for a long time, it can cause tumorh(肿瘤), leukemiBa(白血病), and genetic disorder.5
4.related accidents
in U.S. history.
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• The nuclear accident in Fukushima Nuclear Plant in Japan(日本福岛核电站事故):
The crisis at the Fukushima Daiichi nuclear power plant is the worst nuclear accident since Chernobyl in Ukraine in 1986.
Four types
Light trespass Over-illumination Glare
Light clutter B Skyglow 22
Light trespass
How ：
a strong light enters the window of one's home from the outside
Secondly, provide plenty of sand for sand storm. Thirdly, destroy the vegetation and surface configuration, and reduce agriculture productivity level and result in reduction of food’s output and lead to famine. Furthermore, affect the surrounding countries and regions, even the whole world.
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Manifestation(表现):
rocky desertification (石质荒漠化)
Caused by
secondary salinization (次生盐渍化)
cultivated land degradation (耕地退化)
grassland degradation (草地退化)
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B
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Desertification
----the cancer of the earth
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Definition:
Desertification is a type of land degradation in which a relatively dry land region becomes increasingly arid, typically losing its bodies of water as well as vegetation and wildlife.
Problems :sleep deprivation or the blocking of an evening view.
B
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B
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Glare
• TYPES: Blinding glare, Disability glare, Discomfort glare
• Glare light scattering in the eye causes loss of
• The former Soviet Union Chernobyl accident(苏联切尔诺贝 利核电站事故):
The Chernobyl accident in Ukraine in 1986 was the worst
in the industry's history, as an explosion led to a cloud of radioactive material being spewed
materials, such as the hurts to human and animal
by the water which was polluted by neclear
materials.
B
4
3.Dangers of nuclear pollution
• People will appear those symptoms: dizziness,headache, loss of appetite, if countinue, they will appear the symptom of leukopenia(白 细胞) and thrombocytopenia(血小板减少).
forest land degradation (林地退化)
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Factors caused desertification: • Natural reasons • Man-made reasons
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The harm of desertification:
Firstly, worsen the ecological environment, and threaten infrastructure, such as railway, villages, and reservoirs and so on.
shielded lights around roads can partially blind
drivers or pedestrians and contribute to
accidents.
B
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Light clutter
• HOW:Groupings of lights may generate confusion, distract from obstacles (including those that they may be intended to illuminate), and potentially cause accidents
contrast and leads to unsafe driving conditions,
much like the glare on a dirty windshield from
low-angle sunlight or the high beams from an
oncoming car."In essence bright and/or badly
Thirdly, rainfall generally decreases, which aggravates the desertification.
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Because of the excessive growth of population and backward mode of production, and for lack of protection consciousness about land resource and ecological environment, it has caused the predatory development of resources and intensifies the process of dese
5.individual steps
• Please use fabric bags • Take buses • Use double-sided paper • Do not somke • Understand the symbol and meaning of
the green food • Know some eco-marks