Air pollution: How to reduce harm to your health

Eat plenty of fruits and vegetables. Get regular exercise. Don’t smoke. Control high blood pressure, diabetes, and cholesterol. These are age-old words of wisdom for a healthful life. But when was the last time your doctors told you to avoid exposure to pollution? Accumulating evidence about the impact of pollution on our health suggests that this should be another recommendation — though it wouldn’t be easy to follow.

What is pollution?

A simple description of pollution is anything introduced into the environment by humans and that harms human health or ecosystems. As such, there are many kinds of pollution — in the air, water, and soil — which can take the form of gases, heavy metals, chemicals, bacteria, and even noise.

Let’s focus here on air pollution. Outdoor air pollution includes the burning of fossil fuels (coal, gas, oil) and wildfires. These generate noxious gases, smog (created by ground-level ozone), and soot (fine particles) that are harmful to breathe. Among the contributors to indoor air pollution are fireplaces and home cookstoves that use gas, coal, or biomass fuels such as wood or crop waste that are sometimes used in low-income countries.

Air pollution is a complex and vicious cycle. Its toxic effects are worsened by increased temperatures. Higher temperatures in turn increase the risk of uncontrolled wildfires and the use of energy (think of air conditioners). Both can release greenhouse gases that further drive climate change, which in turn raises temperatures and feeds other extreme weather around the globe, an ever-worsening cycle that continues to repeat.

In the United States, air pollution has improved quite a bit since the passage of the Clean Air Act in 1970. However, some air pollutant levels have risen in the last few years, and air pollution continues to have serious ongoing health impacts, both nationally and globally.

How does air pollution affect your health?

Numerous studies over the years have repeatedly shown that increased outdoor air levels of fine particulate matter correspond to increased hospitalizations for heart disease,strokediabetespneumonia, chronic obstructive pulmonary disease exacerbation, and other serious health problems. Both long-term exposure and short-term exposure seem to matter.

A study published this year looked at global models of pollution levels and risk assessments of the world population over 14 years. It ties fossil fuel combustion alone to nearly nine million premature deaths worldwide in 2018 — that’s one in five deaths — including more than 350,000 in the US. Most of these deaths are due to heart attacks and strokes.

Who is especially vulnerable to the potential effects of air pollution? Anyone who is elderly, young, or pregnant, and anyone with underlying diseases such as a heart or a lung condition. Additionally, people living in low-income communities, which are often situated near industrial plants or high-traffic areas, are disproportionately affected.

What can you do to reduce the harms of pollution?

Use the air quality index (AQI) as a guide to help you. The EPA developed the AQI to measure the air quality. You can track it specifically for where you live at AirNow. When the AQI is in the unhealthy zones, try to avoid outdoor activities, especially near traffic-congested areas. Stay indoors and close the windows while using air conditioners and fans when it’s hot, if possible, to keep you from getting overheated. Or, when you go outside, wear a mask: cloth masks and surgical masks may help with larger particles, but only certain masks like N95s will filter fine particles. It also helps to change your clothes upon your return home.

Be thoughtful about transportation. Think about healthier alternatives to driving whenever you can. Buy local produce, if this is an option for you, to further cut down on global shipping and transportation that contribute to air pollution. And when driving, don’t idle your car, which is estimated to waste three billion gallons of fuel and generate 30 million tons of the major greenhouse gas carbon dioxide per year in the US.

Change out your gas stove. When it is time for a new stove, choose induction or electric stoves over gas stoves. Induction cooktops not only avert indoor pollution, but also use the least amount of energy.

Consider using air purifiers. Although they do not remove all pollutants, they can improve indoor air quality. Choose an air purifier that has a high clean air delivery rate (CADR) matched for the size of your room.

Replace filters. Changing your air conditioner and air purifier filters regularly will improve your air quality and reduce energy use.

Promote clean, renewable energy. Whether it’s opting for a 100% renewable energy plan or voting for leaders that prioritize renewable energy, taking steps to decrease fossil fuel use has the double benefit of combatting climate change and air pollution, ultimately working toward a sustainable future with a healthier planet and a healthier you.

Bible verses for today’s meditation and inspiration: Matthew E. McLaren

Yours, Lord, is the greatness and the power and the glory and the majesty and the splendor, for everything in heaven and earth is yours. Yours, Lord, is the kingdom; you are exalted as head over all. 1 Chronicles 29:11 NIV

Love the Lord your God with all your heart and with all your soul and with all your mind and with all your strength. Mark 12:30 NIV

Now to him who is able to do immeasurably more than all we ask or imagine, according to his power that is at work within us, to him be glory in the church and in Christ Jesus throughout all generations, for ever and ever! Amen. Ephesians 3:20-21 NIV

So he said to me, “This is the word of the Lord to Zerubbabel: ‘Not by might nor by power, but by my Spirit,’ says the Lord Almighty.” Zechariah 4:6 NIV

For the message of the cross is foolishness to those who are perishing, but to us who are being saved it is the power of God. 1 Corinthians 1:18 NIV

For who is God besides the Lord? And who is the Rock except our God? Psalm 18:31 NIV

It was not by their sword that they won the land, nor did their arm bring them victory; it was your right hand, your arm, and the light of your face, for you loved them. Psalm 44:3 NIV

For since the creation of the world God’s invisible qualities—his eternal power and divine nature—have been clearly seen, being understood from what has been made, so that people are without excuse. Romans 1:20 NIV

For in Christ all the fullness of the Deity lives in bodily form, and in Christ you have been brought to fullness. He is the head over every power and authority. Colossians 2:9-10 NIV

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