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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

Assessing the Risks of Tire Burning on Human Health

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

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

background1
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
slide6
Goal
  • To ensure that, if tire burning takes place at IPC, necessary actions are taken to reduce risks to human health
objectives
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
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
  • 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
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

thar she blows
Thar She Blows

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

iscst3 modeling results
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
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
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
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
Questions???
  • Nothing difficult, please.