Assessing the risks of tire burning on human health
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Assessing the Risks of Tire Burning on Human Health. Andrew Mahon, Neale Mahoney, Adrienne Moretti, Shane Murphy, Blake Rainville. Location. Problem. The combustion of tires could potentially release levels of fine particulates which could adversely affect human health. Background.

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Assessing the Risks of Tire Burning on Human Health

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Assessing the Risks of Tire Burning on Human Health

Andrew Mahon, Neale Mahoney, Adrienne Moretti, Shane Murphy, Blake Rainville


Location


Problem

  • The combustion of tires could potentially release levels of fine particulates which could adversely affect human health


Background

  • International Paper Company hopes to utilize scrap tires as an additional fuel source

  • IPC plans to burn 3 tons/hour

  • IPC’s current permit

    (Title V permit) requires

    2-week test period


Background

  • Local citizens are concerned that emissions could reach toxic levels and have harmful affects

  • Vermont has filed suit against IPC to ensure a full environmental review is completed


Goal

  • To ensure that, if tire burning takes place at IPC, necessary actions are taken to reduce risks to human health


Objectives

  • To determine recognized acceptable concentrations of particulate matter in emissions

  • To evaluate human health risks associated with fine particulate matter emitted during tire combustion

  • To evaluate mechanisms that could be implemented to reach LOAEL

  • To make recommendations on how IPC should proceed with tire burning


Burn Rubber

  • Tires composed of petroleum-based products

  • Incomplete combustion produces polycyclic aromatic hydrocarbons (PAH), which condense from gaseous form to become ultra-fine PM

  • The PAH particulate

    matter is hydrophobic


Particulate Matter

  • Particulate matter consists of different substances suspended in the air in the form of particles

  • PM size classifications:

    • PM10

    • PM 2.5

    • Ultra-fine


Particulate Matter and Health Risks

  • PM 2.5 poses most serious known health risks

  • When inhaled, can become lodged deep into the lungs

  • Chronic exposure can

    cause respiratory

    problems, lung disease,

    and cardiovascular

    complications


National Ambient Air Quality Standards for Particle Pollution


Thar She Blows

(Revised Title V Permit, ENSR Corp., 2005)


ISCST3 Modeling Results

  • Models show no significant human health risks from short-term exposure

  • Models do not take PM 2.5 or ultra fine matter into account


Size Does Matter

  • PM is only measured by mass

  • Recently the EPA found importance in measuring particulate size

  • Particulate size most important factor in selecting scrubbers


Scrubber Technology

  • IPC currently uses wet scrubber to reduce large PM (PM10)

  • Wet scrubbers do not remove PM 2.5 or smaller

  • PAH’s are hydrophobic, so wet scrubbers will not be effective


Recommendations

  • More thorough modeling/testing, including ultra-fine particulate matter

  • Run modeling/testing for longer periods of time to determine long-term effects on human health

  • During two-week test, quantify fine/ultra-fine PM emitted to properly assess risks


Questions???

  • Nothing difficult, please.


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