Analysis conducted at Yale University on crumb rubber infill and playground rubber mulch.
Results
2-Mercaptobenzothiazole – Carcinogen, toxic to aquatic life
9,10-Dimethylanthracene – Carcinogen, respiratory irritant and can cause asthma
Bis(2-ethylhexyl) phthalate – Carcinogen, may cause damage to fetuses
Fluoranthene – Carcinogen – Fluoranthene is one of the U.S. EPA's 16 priority pollutants (a PAH)
Heptadecane – Carcinogen
2-mercaptobenzothiazole – Carcinogen
Phenol, 4-(1,1,3,3-tetramethylbutyl) – Carcinogen
Phenanthrene – Carcinogen (a PAH)
Phthalimide – Carcinogen, skin, eye and lung irritant (a Fungicide)
Pyrene, 1-methyl – Carcinogen
Tetratriacontane – Carcinogen, eye and skin irritant. Can cause systemic damage to central nervous system.
Pyrene – Carcinogen Toxic to liver and Kidneys (a PAH)
Below are 20 IRRITANTS found in the tested samples, including:
1,4-Benzenediamine, N-(1,3-dimethylbutyl)-N'-phenyl – Irritant; causes skin and eye irritation; toxic to aquatic life.
1,4-Benzenediamine, N-(1-methylethyl)-N'-phenyl – Irritant; causes skin and eye irritation; toxic to aquatic life.
2(3H)-Benzothiazolone – Irritant; causes skin and lung irritation.
2-Dodecen-1-yl(-)succinic anhydride – Irritant; causes eye, skin and lung irritation.
3,5-di-tert-Butyl-4-hydroxybenzaldehyde – Irritant; causes iye, skin and lung irritation.
Anthracene – Irritant, causes skin, eye and respiratory irritation. Breathing it can irritate the nose, throat and
lungs, causing coughing and wheezing.
Benzenamine, 4-octyl-N-(4-octylphenyl) – Irritant; causes eye and skin irritation.
Benzenesulfonanilide – Considered hazardous; very little testing has been done on it.
Benzothiazole, 2-(methylthio) – Irritant; causes skin and eye irritation.
Dehydroabietic acid – Toxic to aquatic organisms.
Docosane – Irritant; causes skin irritation.
Hexadecanoic acid, butyl ester – Irritant; causes eye, skin and lung irritation. Can cause reproductive effects.
Methyl stearate – Irritant; causes eye, skin and lung irritation.
Octadecane – Irritant; causes skin, eye and respiratory irritation.
Octadecanoic acid, also known as Stearic acid – Irritant; causes skin, eye and respiratory irritation.
Oleic Acid – Irritant; causes skin and eye irritation.
Phenol, 2,2'-methylenebis[6-(1,1-dimethylethyl)-4-ethyl – Irritant; causes skin, eye and respiratory irritation.
Tetradecanoic acid – Toxic to aquatic organisms. Skin and eye irritant.
Anthracene, 2-methyl – Acute aquatic toxicity, Not much data available; what there is shows it to be an eye, skin and lung irritant.
Anthracene, 9-methyl – Acute aquatic toxicity, serious eye irritant.
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