pm2.5毒理研究：PM2.5主要污染物來源
- 發(fā)布人：
- 發(fā)布日期：2017-05-16 11:16:34
PM2.5那就是指空氣動力學當量直徑小于等于 2.5微米的顆粒物，也叫做細顆粒物。
PM2.5 that is, aerodynamic equivalent particles of less than or equal to 2.5 microns in diameter, also known as fine particles.
細顆粒物首要來源于兩個方面：一是各種污染源向空氣中直接釋放的細顆粒物，包含煙塵、粉塵、揚塵、油煙等；二是部分具有化學活性的氣態(tài)污染物（前體污染物）在空氣中發(fā)作反響后生成的細顆粒物。這些前體污染物包含硫氧化物、氮氧化物、揮發(fā)性有機物和氨等。
The fine particles mainly comes from two aspects: one is the fine particles of various sources of pollution to the air release, including dust, dust, dust, soot and other gaseous pollutants; two is the part with chemical activity (precursors) fine particles react in the air after generation. These precursor contaminants include sulfur oxides, nitrogen oxides, volatile organic compounds, and ammonia.
油煙、粉塵等逃避較簡單，由于視覺顯著，還有一些當?shù)匚廴九欧泡^重，能夠盡量躲避，首要的便是工業(yè)污染源、移動污染源、揚塵污染源、日子污染源、農(nóng)業(yè)污染源等。
Avoid smoke, dust and other relatively simple, due to visual saliency, and some local pollution is heavy, can try to avoid, the first is the industrial pollution sources, mobile sources of pollution, dust pollution, life pollution sources, agricultural pollution source etc..
工業(yè)污染源包含火電、冶金、建材、石油化工、組成資料、制藥、塑料加工、外表涂裝、電子產(chǎn)品與設(shè)備制作、包裝打印等；移動污染源包含路途車輛、機動船只、非路途機械、火車、航空器等；揚塵污染源包含路途揚塵、施工揚塵、粉狀物料儲存場揚塵、城市裸土起塵；日子污染源包含飲食業(yè)、干洗業(yè)、小型燃煤燃油鍋爐，以及涂料、粘合劑、油墨、氣霧劑等在生產(chǎn)和使用過程中釋放揮發(fā)性有機物的消費品，家庭取暖煤（油）爐、日子垃圾和城市園林綠化廢物露天燃燒、點燃煙花爆竹等；農(nóng)業(yè)污染首要來自農(nóng)業(yè)用地揚塵、秸稈等農(nóng)業(yè)廢物燃燒、農(nóng)業(yè)施肥以及畜禽飼養(yǎng)等。
Industrial pollution sources include thermal power, metallurgy, building materials, petrochemical, pharmaceutical, plastic processing, material composition, surface coating, electronic products and equipment production, packaging and printing; mobile pollution sources include road vehicles, motor boats, non road machinery, train, aircraft etc; dust pollution sources include road dust, construction dust and powder material storage yard dust, city bare soil dust pollution; day source contains the food and beverage industry, the dry cleaning industry, small coal-fired boilers, as well as coatings, adhesives, inks, aerosol in the process of production and use the release of volatile organic compounds in the consumer goods, home heating coal (oil) furnace, day garbage and city garden green waste burning, fireworks lit; agricultural pollution mainly from dust, straw and other agricultural land, agricultural fertilizer and agricultural waste burning Livestock raising, etc..
格外要注意生活污染及一些施工場所的揚塵污染，有些沙子就堆在路旁邊，沒有一點點遮蓋，造成飛沙嗆人、迷眼。我們面臨這些污染不只要繞道也要攝影取證告發(fā)，聚小成多，鏟除PM2.5從鏟除身邊的小事做起。
Special attention should be paid to domestic pollution and some construction site dust pollution, some of the sand piled on the road, not a little sand cover, causing choking, many eyes. We are faced with these pollution, not just detour, but also photography, evidence, reporting, poly small into more, eradicate PM2.5, from the eradication of small things around start.
