Questions tagged [air-quality]
The air-quality tag has no usage guidance.
30
questions
0
votes
0
answers
10
views
For pollution, How does exposure time and intensity for air quality affect health? Particularly for fine particulates
I'm curious about how fine particulates (like PM2.5) cause damage to the lungs. This summer there's been a lot of concern about outdoor air quality because of wildfires.
My initial guess would be that ...
- 101
2
votes
0
answers
88
views
Is there a danger for "permanent fatigue" if [CO2] approaches or exceeds 800 ppm?
It is well-known that this century, CO2-concentrations could rise to 800 ppm and higher. It is equally well-known how this relates to a warming climate, rising sea-level and ocean acidification. On ...
- 177
0
votes
1
answer
49
views
Is city air pollution causes allergy?
Is there any evidence (study) which shows correlation with city air to allergy (to anything) or any other breath health problems?
If yes is this correlation different if someone lives in big city ...
- 99
1
vote
0
answers
9
views
Effects of Exposure to Periodic, Long-term PM2.5 Pollution
The EPA's AQI quantifies air pollution, sets out ranges of pollution, and associates health risks with each range. Quoting from PurpleAir: "101-150: Members of sensitive groups may experience ...
- 111
1
vote
1
answer
132
views
Which is more harmful, high CO2 indoor or PM2.5 outdoor
Smoke has enveloped the outdoors in my area, the pm2.5 in the area is high, currently at levels categorized as very unhealthy AQI 201-300.
I don't have many indoor plants so the CO2 level inside is ...
- 111
0
votes
1
answer
87
views
Alternatives other than face-mask-respirators for protection against COVID-19 [closed]
Could someone please tell me if these alternatives can also protect one against being infected by COVID-19 virus, when being outside (in grocery stores, markets, etc)?
If yes, how much of protection ...
- 566
3
votes
0
answers
28
views
Risk level of formaldehyde inhalation
How do I estimate the risk level of inhaling a certain level of formaldehyde in the air?
I looked up the EPA's assessment, and they list this summary report in their IRIS database. (By risk, do they ...
- 193
0
votes
1
answer
41
views
Would an operating theater ringed with green plants increase infection risk or reduce it?
I believe that the filtering and oxygen production of green plants is well established. Do those plants NASA approves for air filtration "emit" anything other than clean oxygen and perhaps benign ...
- 593
2
votes
0
answers
46
views
What is the lower end of C02 exposure, where negative health effects of not enough C02 start? [closed]
I am trying to optimize my indoor CO2 levels.
I bought a monitor, which seems to be fairly accurate: When I air my flat thoroughly, for 30min with fans running, I am able to achieve about 450 ppm ...
- 648
5
votes
0
answers
70
views
When trapped in an air pocket does breathing slowly prolong the amount of time you have? [closed]
So there is roughly 21% oxygen in the air. When taking a "normal" breath you saturate your blood with oxygen and exhale air with roughly 16% oxygen.
With that in mind, I am curious if changing your ...
- 51
0
votes
1
answer
118
views
Are aluminum profiles dangerous?
I am thinking about building racing rig from aluminium profiles. Something like this:
Original image here: http://www.simracingmachines.com/images/builds/rig2014/IMG_1686s.jpg
I would like to have ...
1
vote
0
answers
39
views
Is cold plasma safe?
An HVAC installer is recommending cold plasma to fix HVAC systems with Dirty Sock Syndrome.
But are the ions generated by cold plasma generating systems safe themselves?
If I recall correctly, ...
- 2,009
8
votes
3
answers
9k
views
How far away from a highway should I live to avoid negative health effects?
Many articles on the internet claim that living near highways can be harmful to one's health. Here is an example:
https://www.thestar.com/news/canada/2017/01/05/living-close-to-high-traffic-roads-...
- 183
2
votes
0
answers
39
views
Are there any guidelines for the indoor air quality exposure limits for newborns or infants?
Are there any guidelines for the indoor air quality exposure limits for newborns or infants?
I would like to find the guidelines for the indoor air quality parameters such as:
Temperature
Relative ...
- 41
4
votes
1
answer
2k
views
How do you filter out Benzene?
Benzene is (considered to be) a dangerous carcinogenic volatile organic compound. If somebody (oh, say, I dunno, a petrochemical plant maybe?) were to release some Benzene into the air where you live -...
- 518
2
votes
1
answer
1k
views
Do surgical masks effectively protect me against passive smoking and off-gases from cars?
I really find myself threatened by the amount of passive smoke and off-gases of cars I have to inhale every day. I know that surgical mask are not the ultimate solution to it, but can I protect myself ...
1
vote
0
answers
26
views
Research paper on living in areas with fresh air after living for more than 20 years in polluted area and impact on health
Are there any reasearch paper which shows impact on health for the person which is moving from the city with high air pollution to the areas with more fresh air (like countryside)?
Below are 2 main ...
- 111
2
votes
0
answers
30
views
How bad is the pollution when living right on a road with heavy bus traffic?
I'm considering renting an apartment on the first floor right on a boulevard with a heavy bus traffic. The main air supply to the apartment is from that road, so it's pretty obvious you get a lot of ...
- 121
1
vote
1
answer
64
views
Does nose-breathing filter out pollutants?
I live in a somewhat smoggy/polluted city, where the air pollution level regularly varies from totally clean to fairly dirty (3 mile visibility).
When I'm exercising (cycling) and the air is on the ...
- 121
2
votes
0
answers
65
views
Air Cooler and Health Issues
I am new to air cooling appliances at home.
Now, I am planing to buy a air cooler ( not conditioner), but I heard that it will create health issues such as dust allergy, cold etc.
Because It ...
user5170
2
votes
1
answer
109
views
How to breath better when you live in a big city?
We know that big cities have bad effects on health, due to their poor quality of air.
The main pollutants we find in the air are PM10, nitrogen dioxyde and ozone. These three pollutants hazardous to ...
4
votes
1
answer
905
views
Carbon Dioxide Poisoning in Everyday Situations
I am wondering whether slight CO2 poisoning (hypercapnia) can be induced by everyday bad behaviour. I am particularly interested in the consequences of
The prolonged use of a surgical mask (a.k.a. ...
- 485
1
vote
1
answer
450
views
What are the pros and cons of various negative ion generators for health benefits?
I've come across quite a few in my research but I'm hoping to hear from someone who's had more experience. I work with computers and digital displays in my room that leave cations in the air (and I'm ...
- 47
2
votes
1
answer
847
views
What are the dangers of breathing minerals that are dispersed into the air by a humidifier?
The Mayo Clinic warns against the use of tap water in a humidifier:
Use distilled or demineralized water. Tap water contains minerals that can create deposits inside your humidifier that promote ...
- 10.3k
3
votes
1
answer
6k
views
How humid should the air be to avoid epistaxis (i.e., nosebleed) induced by air dryness?
Many websites indicates that excessively dry air may cause epistaxis (i.e., nose bleeding).
Example:
Dry air is the most common cause of nosebleeds. Living in a dry climate and using a central ...
- 10.3k
6
votes
0
answers
161
views
cigarette vs exhaust gas [closed]
People always associate pollution to cars, but as a frequent biker, I don't really smell anything from exhaust pipes for all 'recent' cars.
When a car passes me, I can always know by the smell if ...
- 161
6
votes
2
answers
157
views
How is it determined that someone died from "air polution"?
I saw this question on another Stack Exchange site, and wondered, how do they even know that one person in China died from "air pollution"?
How do these studies that lump millions of people into ...
- 163
4
votes
0
answers
5k
views
What is the ideal oxygen air percentage for longterm health?
I'm working on a science-fiction story, and a recent scene deals with someone tampering with the O2 levels of a ship's recycled atmosphere. I find myself wondering, what is the ideal oxygen level for ...
- 193
4
votes
2
answers
409
views
Do HEPA air filters serve any health benefit?
I have been researching particulate matter pollution and air filters. I read about HEPA air filters and that they can capture over 99% of particles in the air, including allergens. I was thinking that ...
user1213
4
votes
1
answer
216
views
How healthy are hands-free stenomasks?
I use hands-free stenomasks for extended periods of time. How healthy are they?
I am mostly worried about the quality of the air I inhale, and I would like to know the effect on the skin to have ...
- 10.3k