How much pm is enough

Particles of sand and large dust, which are larger than 10 micrometers, are not regulated by EPA. Learn about how air quality standards help reduce PM. AirNow : Every day the Air Quality Index AQI tells you how clean or polluted your outdoor air is, along with associated health effects that may be of concern.

The AQI translates air quality data into numbers and colors that help people understand when to take action to protect their health. Skip to main content. Particulate Matter PM Pollution. Buy Now. What Is PM 2. Air Quality , Health. By Haldane King. December 23, What is PM 2. What causes PM 2.

Why is PM 2. International impact of PM 2. How to protect yourself from high levels of PM 2. Hazardous: Air quality this poor almost never happens in the U. AirNow recommends asking your doctor if leaving the polluted area or moving to another location would be the best course of action.

Very Unhealthy: Still rare, but may occur during wildfire season or in urban areas on hot, windless days; everyone should avoid outdoor activity at this level. Unhealthy: At this level of PM 25 pollutants, time spent outdoors should be limited, outdoor activity restricted, and windows kept shut. Unhealthy for Sensitive Groups: Anyone with asthma or other respiratory problems or cardiovascular disease should limit time outdoors and reduce outdoor activity.

Moderate: The U. AQI does not include recommendations for PM2. What should I do? Pollution is hazardous at these levels. Everyone should take steps to reduce their exposure when particle pollution levels are in this range. Staying indoors — in a room or building with filtered air — and reducing your activity levels are the best ways to reduce the amount of particle pollution you breathe into your lungs.

Read on for more information on steps to help reduce your exposure to short episodes of high levels of PM2. Links to recommendations for reducing exposure to smoke from fires are available below. These recommendations may help reduce exposure during short-term pollution episodes in which PM2. Who needs to take steps to reduce exposure when PM2.

Some people are at higher risk from PM2. People most at risk from particle pollution exposure include those with heart or lung disease including asthma and chronic obstructive pulmonary disease-COPD , older adults, and children.

Research indicates that pregnant women, newborns, and people with certain health conditions, such as obesity or diabetes, also may be more susceptible to PM-related effects. Not sure if the heart disease category applies to you? This group also includes older adults , because they are more likely to have undiagnosed cardiovascular disease, along with people with multiple risk factors for cardiovascular disease, such as high blood pressure, elevated cholesterol, smoking, and diabetes.

Why are children more at risk? Children are more likely to be exposed to air pollution, because they often spend more time outdoors engaged in activity and play, and they breathe more air per pound of body weight than adults. They are more susceptible to the effects of air pollution, because their airways are still developing. In addition, children are more likely than adults to have asthma, which increases their risk.

If you are in an at-risk group , if you have heart or lung disease, if you are an older adult, or if you have children, talk with your doctor in advance about when and whether you should leave the area or move to a location with better indoor air quality. When PM2. How can I tell if particle pollution is affecting me? Even if you are healthy , you may experience temporary symptoms such as irritation of the eyes, nose, and throat; coughing; phlegm; chest tightness; and shortness of breath.

Generally, BIG equals more rigor. Big risk, big cost, big complexity, you get the picture. Project Manager Maturity is the measure of the experience of the assigned project manager. We all remember our first PM assignment: difficult meetings, estranged team members, questioning stakeholders, sweaty palms. We followed the prescribed process very closely so as to create that defensible documentation and support our memory.