Emissions from industrial plants and exhaust gases, dust and fumes of hot asphalt make the problem of air purification from pollution very urgent. Trees play an important role in its solution.
Instructions
Step 1
Poplars begin to bloom in early summer. Their fluff swirls through the streets, annoying many residents. However, local authorities are not always in a hurry to cut down these trees. There is a good reason for this: the poplar can be called the record holder among trees for air purification. Its wide and sticky leaves successfully trap dust by filtering the air.
Step 2
Poplar grows rapidly and gains a green mass, which absorbs carbon dioxide and produces oxygen through photosynthesis. A hectare of poplars produces 40 times more oxygen than a hectare of conifers. The oxygen that one adult tree releases per day is enough for 3 people to breathe during this time. At the same time, one car burns as much oxygen in 2 hours of operation as one poplar synthesizes in 2 years. In addition, poplar successfully humidifies the air around it.
Step 3
A special advantage of poplar is its unpretentiousness and resilience: it survives along highways and next to smoking factories. Lindens and birches die under these conditions. The problem of poplar fluff, annoying to many, can be solved by replacing black poplar with "non-fluffing" species - silver and white.
Step 4
Rosehip, lilac, acacia, elm are good at absorbing harmful substances from the air. These plants also survive in dusty environments. They can be planted along motorway sides as a green shield against exhaust fumes. Elms with their wide leaves retain 6 times more dust than poplars.
Step 5
Chestnut is very useful in urban conditions. It is almost as unpretentious as a poplar. At the same time, an adult tree cleans about 20 cubic meters of air from exhaust gases and dust per year. It is estimated that a hectare of deciduous trees traps up to 100 tons of dust and airborne particulate matter per year.
Step 6
Although conifers are not as successful at trapping dust as deciduous trees, they produce phytoncides - biologically active substances that suppress pathogenic microorganisms. Thuja, juniper, fir and spruce will help residents to cope with disease-causing microbes. In addition, conifers purify the air throughout the year, and not only in warm weather. Birches also produce phytoncides, but these trees, like lindens, are best planted away from roads and "dirty" industries - they are not as viable as poplars or chestnuts.
Step 7
Lead is very harmful to health, which enters the atmosphere as a result of fuel combustion in a car engine. One car can emit up to 1 kg of this metal per year. Leaves on trees along highways can often be seen collapsing and falling off as a result of lead poisoning. Lead is best absorbed by larch and various mosses. It takes 10 trees to neutralize the damage from 1 car.
