Children have & # 39; & # 39; get three times more air pollution in the morning than the rest of the day, because of cars running outside the school gates.
Levels of ultra-fine particulate matter, known as PM2.5, that are emitted from the exhaust pipes of cars that are on # 39; Monday morning to drop off children were found to be the main source of pollution in a Surrey school, air quality experts reported.
PM2.5 level & # 39; s were three times higher in & # 39; period of & # 39; In the morning as well as in the afternoon or in the school day, researchers found using smart sensors.
Too bad that PM2.5 level & rsquo; s a little rose in classrooms closest to the road during both morning and noon pick up.
However, the report found that schoolchildren are at risk of dangerous levels of car tire microscopy and exhaust at all times – even in classrooms.
In summer, harmful effects on & # 39; e lungs of children will be highest because of a dependence on natural ventilation through windows, which enters unfiltered air.
Children oppose a worrying threefold increase in air pollution during the morning's runs, prompting air quality experts from Surrey to request restrictions on the use of cars
PM2.5 deterioration has been shown to be associated with increased mortality due to diseases such as heart disease and stroke in later life.
The researchers are now asking for restrictions on the use of cars in the & # 39; morning in & # 39; e fearful delivery period of school, especially in urban areas.
& # 39; The findings will be of great local and further away to parents, & # 39; said Professor Prashant Kumar, director of the Global Center for Clear Air Research of & # 39; University of Surrey (GCARE).
& # 39; It goes without saying that our children's health and well-being are the top priority in & # 39; society and that we need to protect them against & # 39; dangers of air pollution, including where & # 39; the school can now run, is seen as directly affecting & # 39; e school environment. & # 39;
In a Guildford elementary school of more than 400 students, the research team installed smart air quality sensor kits in five key areas around the school – the main road, the intersection at the adjacent road, drop-off point, a classroom and the school playground.
The sources of particles are varied, ranging from weed transport to fuel. The prevalence of cars during school hours in and around school buildings increases the number of dangerous particles that our children breathe, even during play time, long after they have been set off.
They recorded the concentration of fine and italic particles from 7:30 am to 9:30 am, and again in the afternoon, from 2 pm to 4 pm – as well as morning carbon dioxide.
BABIES IN LOW BUGGIES WITHOUT EYES
Babies are exposed to more air pollution as they are pushed closer to the ground in their infants, GCARE previously reported at Environmental International.
Infants as high as 2.6 feet of soil in their pushchair breathe 44 percent more pollution than the adult who shot them.
Babies in the bottom of a double-chair pushchair, meanwhile, are exposed to nearly three-quarters more pollution than their fellow rider who sits just above.
Parents and caregivers can help children with buggies by keeping them as high off the ground as they can and reducing their exposure to busy traffic hotspots.
Young children are among the most sensitive and vulnerable groups because of their higher breath compared to that of adults.
The threefold increase in PM2.5 concentrations during wasted hours was from a & # 39; dominant contribution & # 39; of car queues in & # 39; s school building.
Coarse particles – those between 2.5 and 10 micrometers – were also found prevalent in the school playground.
However, the fine particles of 2.5 micrometers and less were found to be the dominant type in the school environment.
Triple the amount of PM2.5 in & # 39; air during the drop-off of & # 39; e morning compared to the pickup of & # 39; noon was probably due to the last one being carried from off-site parking.
Students also participated in after-school activities, meaning pickups were more sporadic throughout the afternoon and early evening.
The proximity of a playground to a main road – which is common in British schools – resulted in consistently high PM2.5 levels throughout the high school day.
The team of recommended schools provide safe and accessible off-site parking drop-off points to help reduce air pollution.
Poor parents may also want to reflect on their tendency to leave their children at the front of the school with the engine that still does not run when the school reopens after the coronavirus lockon.
cars during the school run increase the number of dangerous particles that our children breathe in, even in playtime, long after they are set off, researchers said
Alternatives may include parking in an isolated green area away from the & # 39; main road that & # 39; t a short walk from & # 39; e school.
An even better option to benefit the lungs of children would be to run the entire trip if the distance is on foot to manage.
Green hedges can also act as natural barriers between the road and the school that block PM.2 and use excessive carbon dioxide in the air to release oxygen.
The principal of the Guildford School said he hoped parents would revisit trips to and from school.
& # 39; Minimizing exposure to air pollution in and around & # 39; e school should be at the top of our agenda and we need to find practical but effective ways to reduce this exposure to air pollution in our school environment, & # 39; said Neil Lewin at St Thomas of Canterbury Catholic Elementary.
The research is published in Science of & # 39; total environment.
GCARE also recently revealed that dolls in baby boxes near the ground are exposed to more polluting substances, due to their being around exhaust height.
Infants as high as 2.6 feet of soil in their pushchair breathe 44 percent more pollution than the adult ones pushing them, they reported earlier this month in Environmental International.
Particulate matter can affect the heart and lungs
PM is a mixture of solid particles and liquid droplets found in air.
They are made from a variety of sources, including traffic, construction sites, unpaved roads, fields, smokestacks or fires.
Most particles form in the atmosphere as a result of reactions of chemicals such as sulfur dioxide and nitrogen oxides.
Some PM, such as dust, dirt, soot, or smoke, is large or dark enough to see with the naked eye.
Other PM is so small that it can only be detected with an electron microscope.
PM2.5 – of diameters that are generally 2.5 micrometers and smaller – differ from PM10 – 10 micrometers and smaller.
PM1 particles (less than 1 micron) come from sources such as combustible fossil fuels, such as oil, diesel and gas, as well as power plants and internal combustion engines.
PM1 can adversely affect the function of the brain, allowing them to easily access blood circulation after being in the & # 39; e lungs are breathing.
Even smaller are ultrafine particles (less than 100 nanometers in diameter, also called UFP or PM0.1).
These contribute negatively to particle mass, but significantly to particle number (PNC) concentrations.
UFP's are so small in size that they can penetrate deep into the lungs and move to the other parts of the body.
It is thought that UFPs may have a greater potential for adverse health effects compared to larger particles.
UFP's are not covered by current ambient air quality regulations, according to Professor Prashant Kumar, founding director of the Global Center for Clean Air Research (GCARE) at the University of Surrey.
Source: US EPA / GCARE
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