The Environmental Journal of Southern Appalachia

Saturday, 20 March 2021 14:10

The days the Earth stood still (Part 1): Covid cleared the air in the lonely Smokies

Written by
OLYMPUS DIGITAL CAMERAGreat Smoky Mountains National Park Air Resource Specialist is seen at the Look Rock air quality research station.   Courtesy National Park Service

The lack of regional and local vehicle traffic during the pandemic greatly reduced measurable pollution in Great Smoky Mountains National Park.

This is your Hellbender weekend read, and the first in an occasional Hellbender Press series about the effects of the Covid-19 pandemic on the natural world

Great Smoky Mountains National Park shut down for six weeks in 2020 during the Covid-19 pandemic. Recorded emissions reductions during that period in part illustrate the role motor vehicles play in the park's vexing air-quality issues. The full cascade of effects from the pollution reductions are still being studied.

Hellbender Press interviewed park air quality specialist Jim Renfro about the marked reduction of carbon dioxide and other pollutants documented during the park closure during the pandemic, and the special scientific opportunities it presents.  He responded to the following questions via email.

Hellbender Press: You cited “several hundred tons" in pollutant reductions during an interview with WBIR of Knoxville (in 2020). What types of air pollutants does this figure include? 

Answer: Carbon dioxide (CO2) would be most of the tons reduced from the lack of motor vehicles in the park during the park shutdown because of the pandemic.  Carbon monoxide (CO), nitrogen oxides (NOx),  volatile organic compounds (VOCs), and particulate matter are other emissions that were lower, but to a much lesser extent.  

HP: During what time frame?

A: It was based on when the primary park roads were closed, for about a six-week period from March 24 through May 9 (2020) 

HP: Was this based on data collected at the Look Rock air-quality monitoring station or monitoring sites throughout the park? 

A: No, it was estimated reductions in air emissions (tons) from using the park's emissions inventory for criteria air pollutants and greenhouse gases coupled with the reduction in park visitation data for the period of the park shutdown.

HP: Was this a result of reduced auto travel in the park? 

A: Yes. 

HP: A lot of emissions, of course, come from outside of the park. Was the improvement in air quality also a function of reduced pollutants coming from outside the park? 

A: The documented reduction was with emissions, not air quality. Air quality analysis is still under way to look at changes in air pollutants. 

HP: What do you think the primary reasons for the air quality improvements were?  

A: If there were reductions in air pollutants (and that is still being analyzed by EPA and NPS Air Resources Division), it was due primarily to the reduction in motor vehicle emissions in and near the park (and regionally).

HP: Did you purposefully set out to quantify the pandemic’s effect on air quality, or was this an “accidental” discovery? 

A: We did not purposefully set out to quantify the pandemic's effect on air quality. Monitoring efforts continued during the pandemic and provided a unique and unexpected opportunity to characterize the differences in air emissions (from park closures and limited motor vehicle emissions) and air pollutants (which will take longer to look at laboratory analysis after quality assured analysis).


HP: How is this a positive for the Smokies and park visitors?

A: It allows us to look at the changes in emissions and air quality from the reduction in visitation and motor vehicle emissions. 

HP: Have you ever seen a period of such drastic reduced pollutants in the park?   

A: No. There have been times when the park is closed due to inclement weather, but that usually only lasts a few days at most. The park closure was about six weeks. 

HP: Was this a truly unique period for research, and how can that baseline be used moving forward?  

A: I think we look at differences in emissions and air quality during this same time period in other years that didn't experience a pandemic and compare those to look at key differences, both in the monitoring and the modeling of air quality.

HP: Visitation was very high when the park reopened. Were those air quality gains quickly reversed, or did the park enjoy better air quality through the past year?  

A: Air quality continues to improve here at GRSM over the past 20 years. Much of the recent monitoring data that was collected during 2020 is still going through QA/QC procedures in the labs before it is ready to share.  So, too early to tell.

HP: What are the air quality trends over the past 10 years? Improvements or backsliding? 

A: Air quality has continued to improve over the past 10 years for ozone, particulate matter, acid deposition, and regional haze.

HP: What are the main reasons for air quality improvements during that period?  

A: Continued emission reductions of sulfur dioxide (improves visibility, acid deposition and particulate matter) from power plants and lower nitrogen oxides (improves ground level ozone, acid deposition, particulate matter, and regional haze) from power plants and motor vehicles.

HP: Have you yet better parsed the data to get a fuller look at how the 2020 improvements might affect “downstream” natural attributes of the park such as acid deposition or mercury contamination? 

A: No. Final QA/QC'd data is not available for much of the 2020 air quality data.  

HP: Will this period of reduced emissions have a positive effect on other park resources?  

A: Most of the emission reductions were short-term reductions during the shutdown period. Once the full and final data is available, it will be easier to evaluate the changes in seasonal and annual air pollutants.

HP: What is your projection for park air quality over the next 10 years? 

A: I know from some of the regional haze forecasted modeling projecting out to the year 2028, conducted by the states under the Regional Haze Rule, there will be additional emission reductions of SO2 and NOx, resulting in less regional haze, improved visibility, and lower acid deposition.

HP: What needs to be done to ensure improvements occur, or continue? Are there any new threats, or is it the same list of usual pollutant suspects from over the years? 

A: The NPS continues to work with states, EPA and the public to monitor air pollutants in order to maintain air quality standards and protect ecosystems. Acid deposition, regional haze, ozone, particulate matter, and mercury bioaccumulation are still air pollution concerns here at the park.

Rate this item
(2 votes)

Related items

  • Juneteenth: An Urgent Call for Climate Solutions
    in News

    Exxon Mobil refinery Baton Rouge, LA ExxonMobil’s Baton Rouge, LA refinery, Feb. 11, 2016. Later that day, shortly before midnight, a massive fire broke out, bathing the night sky in an orange glow visible for miles around.  Creative Commons Mark BY 2.0 Jim Brown/Flickr 

    Generations of Black Americans have faced racism, redlining and environmental injustices, such as breathing 40 percent dirtier air and being twice as likely as white Americans to be hospitalized or die from climate-related health problems.

    AMERICA TODAY — This week, NPR’s Living on Earth podcast and illustrated transcript elucidates how relevant the broader meaning and historic context of Juneteenth is for all American citizens and residents.

    Host Steve Curwood discusses with Heather McTeer Toney her new book, ‘Before the Streetlights Come On: Black America’s Urgent Call for Climate Solution.’

    McTeer served as the Southeast Regional Administrator of the Environmental Protection Agency in the Obama administration and is now Executive Director of Beyond Petrochemicals. She argues that the quest for racial justice must include addressing the climate emergency and that the insights of people who experienced the negative health and socio-economic impacts of the petrochemical industry must be tapped to develop solutions that will work on the ground.

  • Work is under way to clean up infamous South Knoxville Superfund site
    in News

    Screenshot 595

    EPA finally capping toxic waste at South Knoxville Superfund site

    KNOXVILLE — The Environmental Protection Agency this week began putting a protective cap on the former Smokey Mountain Smelters site to control its pollution.

    The EPA said the cap will protect nearby waterways by stopping stormwater runoff from combining with the toxic waste on site. Engineers and workers began the project the week of July 6.

    By cutting it off from the stormwater, the EPA hopes to stop toxins from flowing away either through groundwater or runoff. The site is off Maryville Pike in South Knoxville. Caleb Properties purchased two of the site’s three parcels at the Delinquent Property Tax Sale on May 16. EPA is building the cap and storing the waste in the area Caleb Properties purchased. The agency stated Caleb Properties committed to “allocating a portion of the development of the site for community benefit,” and they’ll still have to work with the EPA’s remedy for cleanup. 

    Hellbender Press has reported on the cleanup sites and environmental legacies.

  • Enviros cheer new Biden plan to limit fossil pollution

    WASHINGTON, D.C. — The U.S. Environmental Protection Agency on May 11 proposed new carbon pollution standards for coal and gas-fired power plants to protect public health and reduce harmful pollutants.

    EPA’s proposed standards are expected to deliver up to $85 billion in climate and public health benefits over the next two decades and avoid up to 617 million metric tons of total carbon dioxide (CO2) through 2042.

    EPA estimates that in 2030 alone, the proposed standards will prevent more than 300,000 asthma attacks; 38,000 school absence days; 1,300 premature deaths; 38,000 school absence days; and 66,000 lost work days.

    Dr. Stephen A. Smith, Executive Director of Southern Alliance for Clean Energy“Individuals and communities across the country are doing whatever they can to protect against the immense dangers of climate pollution and are depending on the federal government to do the same. Federal limits on climate pollution from power plants are a critically needed and long overdue protection for public health and the environment. 

    “We will be reviewing the proposal and hope that the proposal hits the mark in giving our communities the safeguards they need from deadly fossil pollution.”

    EPA will be taking comments on these proposals for 60 days after publication in the Federal Register.

    — SACE

  • The Mingus music mill: Tracing a mountain family’s history from slavery to stardom
    in News

    Charles Mingus Jr. 1976, cropped Charles Mingus, the descendant of slaves from the Smokies, is shown chomping a cigar and playing bass at the U.S. Bicentennial celebration in Lower Manhattan, July 4, 1976. Creative Commons Mark Tom Marcello 

    Smokies African American studies trace a great musician with roots in Oconaluftee 

    GATLINBURG ­— Black history, let alone jazz history, isn’t the first thing that comes to mind when most people think about the Smokies.

    But famed jazz musician Charles Mingus Jr.’s family has roots in what is now Great Smoky Mountains National Park.

    At the recent virtual Discover Life in America Colloquium, previously reported on by Hellbender Press, Appalachian Highlands Science Education Coordinator Antoine Fletcher was the sole presenter on social sciences. He went into the Mingus family history and Black history in the Southern Appalachian region.

    Fletcher said the Mingus story derives from the African American Experiences in the Smokies Project, which he described as “a project that is focusing on the untold stories of African Americans in the park and the Southern Appalachian region.”

    “There’s a huge story to tell,” he said of his research. “There are stories of the human vestiges that we have from 900-plus years.”

  • From soil to sky: Will the misty microclimates of the Smokies prevail in a warming world?
    in News

    IMG 7863With the help of GPS coordinates and survey flags, Jordan Stark is able to deploy and locate the exact off-trail placement of soil moisture sensors she placed in Great Smoky Mountains National Park as part of her graduate research at Syracuse University.  Elan Young/Hellbender Press

    Foundational ecology moves from before times to nowadays in the Smokies

    GATLINBURG — In the Middle Ages, salamanders were thought to come from fire. A log set on the hearth would send them scurrying out of the rotten wood, startling those who had gathered around for warmth. We now know that salamanders, of course, come from water — even the European fire salamander with its flame-like yellow markings.

    Over the last 20 years of getting my boots soggy in Great Smoky Mountains National Park, I know these creatures to thrive in the clean, shallow streams and trickles of this temperate rainforest, where annual precipitation is higher than anywhere in the U.S. save for the Pacific Northwest.

    One way to become acquainted with the park is through the water that veins through the hills and is transmuted into vapor that floats on the air in misty silence. After a rain, you can slake your thirst from the pools formed in the creases of broad rhododendron leaves. Sit by a shallow, fishless stream for long enough and you might spot the quick movement of a salamander tail, maybe a flash of orange or brown, or notice a tiny black amphibian face peeking out from behind a smooth stone in the creek.

  • 2016 Smokies wildfires: Six years later, the good and the bad come into focus as natural recovery continues
    in News

    COVER 1208 GatlinburgsInferno1Journalists and park officials document damage from the November 2016 wildfires that killed at least 15 people and left hundreds of dwellings and businesses in ruins. Thomas Fraser/Hellbender Press via Knoxville Mercury

    How the 2016 Great Smoky Mountains National Park wildfire affected salamanders and other life, six years on

    GATLINBURG  The disastrous Chimney Tops 2 wildfire of 2016 occurred some six years ago, but researchers are still looking at its ecological effects.

    The Discover Life in America 2023 Colloquium brought together researchers this month from different fields and universities to present findings on research in Great Smoky Mountains National Park. 

    Researchers presented on many topics, ranging from trout to the history of the Mingus family in the park.

    One such presentation, the first of the day, from William Peterman, associate professor in wildlife ecology and management at Ohio State University, focused on the effects wildfires had on salamander populations, which he described as negative.

    Other presenters touched on the wildfire’s effects as well, including its effects on vegetation and its beneficial effects on the diversity of bird species.

    “Smoky Mountains is the self-proclaimed salamander capital of the world,” Peterman said. He focused his study on the plethodontid family of salamanders, which breathe through their skin.

    “Kind of think of them as a walking lung,” he said.

  • Updated 1/3: Conservationists express dismay as Feds conclude ‘no significant impact’ from construction of Wears Valley mountain bike complex
    in News

    Foothills parkway

    Feds clear 14-mile mountain bike trail network off Foothills Parkway, but no funding is secured 

    GATLINBURG — Those who logged protests against a National Park Service plan to carve a 14-mile mountain bike trail network through the forest off Foothills Parkway said they still opposed the plan despite federal conclusions it would not adversely impact the natural environment of the area. 

    “I’m very disappointed,” said Donna Edwards, an outspoken conservationist who lives in Walland and participated in the public scoping process. “What are (the) reasons for choosing the alternative with the largest footprint and greatest environmental impact?

    “I fail to understand why mountain bikers’ needs are considered to be more important than those of birders and hikers, considering the extensive mountain bike trail networks in other areas of East Tennessee.”

    She said arguments against approving the Wears Valley mountain bike trails were wise and well documented.

    Here is the original Hellbender Press story:

    A proposed off-road bike trail in the Wears Valley section of the Foothills Parkway that would be operated by the National Park Service has overcome a procedural hurdle but appears to be no closer to actually being built due to a lack of funding. 

    An environmental assessment to determine the project’s potential impact on wildlife and the environment led to an official “Finding of No Significant Impact” (FONSI), park officials said in a press release issued Thursday. 

    “We understand the public’s desire to have a purpose-built bike trail, and this marks a step for potential future development of a trail in Wears Valley,” said Cassius Cash, superintendent of the Great Smoky Mountains National Park. “Having the signed FONSI allows us the opportunity to explore potential funding paths for both the construction and the annual operational costs.”

  • Updated: Smokies crews recover drowned Knoxville kayaker

    TOWNSEND — Smokies recovery teams on Monday found the body of Carl Keaney, 61, of Knoxville, in the Little River.

    Keaney was last seen kayaking the Sinks during high flow when he vanished under water, prompting calls to Great Smoky Mountains National Park rangers who, along with other local crews, proceeded to search for his body for three days.

    Here’s the previous Hellbender Press report:

    Teams are searching for a missing kayaker in what Great Smoky Mountains National Park officials are now calling a “recovery operation” after a 61-year-old man disappeared underwater while boating above the Sinks on Little River. High water levels from recent heavy rains are making search and recovery difficult.

    “Around 3:40 p.m. on Friday, Dec. 16 Great Smoky Mountains National Park dispatch received a call that a 61-year-old man had disappeared underwater while kayaking above The Sinks and did not resurface,” according to a news release from the park. 

  • 8 billion people and counting in the face of climate change
    in News

    Canopy Nexus Hotel after floodingFlooding is seen outside a popular hotel in Pakistan following historic and devastating flooding linked largely to the melting of highland glaciers.  Wikipedia Commons

    Global population growth promises a drastic spike in public health emergencies

    This story was originally published by The Conversation. Maureen Lichtveld is dean of the School of Public Health at the University of Pittsburgh. 

    There are questions that worry me profoundly as an environmental health and population scientist.

    Will we have enough food for a growing global population? How will we take care of more people in the next pandemic? What will heat do to millions with hypertension? Will countries wage water wars because of increasing droughts?

    These risks all have three things in common: health, climate change and a growing population that the United Nations determined passed 8 billion people in November 2022, which is double the population of just 48 years ago.

  • Celebrate the wild ties that bind Americans on Public Lands Day 2022 — Saturday, Sept. 24

    fontana

    GATLINBURG — The director of the National Park Service is expected in Great Smoky Mountains National Park on Saturday to celebrate National Public Lands Day.

    Director Chuck Sams plans to make some remarks in appreciation for the volunteers who help backstop national park maintenance costs before citizens fan out for various tasks across the park. Sams is the first Native American to head the park service, and he will be joined by Eastern Band of Cherokee Indians Chief Richard G. Sneed.