Air sanitation sDept of Environmentalhealth 象
Air Sanitation 环境卫生学教研室 Air Sanitation Dept. of Environmental health Aiguo Wang
Constituent of Environment lo热电离层 关,小的成 ,典 逸散层 国的 的 50km 等 平层 204 OH的,告对溉 泊 水圈 海洋 皇公以面平是常,那土木,显土阳 石周 已距立所到
Constituent of Environment
Atmospheric sphere Definition the air layer which surround the surface of earth and circumrotate with earth (包围地球表面并随着地球旋转的空气层) The thick is around 2000km--3000km >The character of physics and chemistry of atmospheric sphere is change with height
Atmospheric sphere • Definition：the air layer which surround the surface of earth and circumrotate with earth. (包围地球表面并随着地球旋转的空气层) ➢The thick is around 2000km～3000km. ➢The character of physics and chemistry of atmospheric sphere is change with height
Section 1 Upright structure of atmospheric sphere 升大气层(遮积层 层 thermosphere 90m一非均 umbrella of earth 92. 均 忽 中阔层 1. Nea Ozone layer mesphere 2. Density is the most 25~35km.20km 3. Thickness is change 50km 2°C 4. Upright and horizontal move 平层 臭氧屠 5. Mostly climate changes stratosphere 网温品 happen in this layer Hkn--6c 6. Contain mostly pollutants Isothermal layer 对流层 22km,-50~-60℃ troposphere
1. Nearness earth 2. Density is the most 3. Thickness is change 4. Upright and horizontal move 5. Mostly climate changes happen in this layer 6.Contain mostly pollutants troposphere stratosphere Isothermal layer 22km, -50~-60℃ Ozone layer 25 ~35km, 20km umbrella of earth Section 1 Upright structure of atmospheric sphere mesphere thermosphere
Component of air Nitrogen: 789 Oxygen: 21% Argon: 0.93% Carbon dioxide: 0.03% >(1) City is higher than country >(2) The CO2 contain is increase 1.5ppm increase for each year 1800(270ppm);1984(345ppm 2100(temperature will increase 6C)
Component of air • Nitrogen: 78% • Oxygen：21% • Argon：0.93% • Carbon dioxide：0.03% ➢ (1) City is higher than country ➢ (2) The CO2 contain is increase: 1.5ppm increase for each year 1800 (270ppm); 1984 (345ppm) 2100 (temperature will increase 6℃)