Exposures the Record Cannot Answer Yet

These substances turn up in Board decisions, sometimes in thousands of them, but the Board has ruled on them too few times to show a pattern for any one condition. They get no chart of their own. That is not the same as nothing being there, so here is exactly what the record holds.

The jury is still out

For every substance on this page there is not enough evidence in the Board record to answer the question of causation, either way. A grant below does not mean the substance causes that condition. It means that in one veteran's case, on that veteran's evidence, the Board granted the claim. A handful of decisions cannot establish a medical link, and this page does not claim one.

Two rules decide what appears here. An issue is counted only when the substance is tied to that issue, not merely present somewhere in the same decision, because counting loosely inflated one substance's grants from 4 to 41. And a substance is listed only if the Board granted at least one such claim: where the record holds accusations but no grants, there is nothing to report and it is left off entirely.

Industrial solvents and degreasers

The cleaning solvents and parts-washer degreasers used in motor pools, maintenance bays and shops.

2,325decisions mention it
38name it in the findings of fact
26issues actually ruled on
12of those were granted

Welding fumes

The metal-oxide smoke given off when metal is welded, brazed or torch cut.

364decisions mention it
20name it in the findings of fact
14issues actually ruled on
5of those were granted
Conditions the Board granted in those decisions:

Perchloroethylene (PCE)

A dry-cleaning and degreasing solvent, and a groundwater contaminant at some installations.

3,945decisions mention it
28name it in the findings of fact
10issues actually ruled on
4of those were granted

Chlorine gas

Used for water purification and released in industrial and training accidents. A strong respiratory irritant.

370decisions mention it
32name it in the findings of fact
20issues actually ruled on
3of those were granted
Conditions the Board granted in those decisions:

CARC paint (chemical agent resistant coating)

The paint used on tactical vehicles and aircraft so chemical agents can be washed off. Sanding, grinding or spraying it is what releases the fumes and dust.

325decisions mention it
17name it in the findings of fact
8issues actually ruled on
3of those were granted
Conditions the Board granted in those decisions:

Depleted uranium

Used in armour and armour-piercing rounds. The exposure route is inhaled dust after a vehicle strike or fire.

1,365decisions mention it
38name it in the findings of fact
20issues actually ruled on
2of those were granted
Conditions the Board granted in those decisions:

Hydrazine

The rocket and aircraft fuel used in the F-16 emergency power unit and in missile systems.

188decisions mention it
11name it in the findings of fact
4issues actually ruled on
1of those were granted
Conditions the Board granted in those decisions:

Hexavalent chromium

Found in chromate primer paints and in the fumes from welding stainless steel.

451decisions mention it
4name it in the findings of fact
1issues actually ruled on
1of those were granted
Conditions the Board granted in those decisions:

Methylene chloride

A paint stripper and degreasing solvent.

122decisions mention it
2name it in the findings of fact
1issues actually ruled on
1of those were granted
Conditions the Board granted in those decisions:

Common questions

Why is there no grant rate on this page?

Because the samples are far too small for one to mean anything. A percentage calculated from four decisions looks like a statistic and behaves like noise. The counts are shown raw so you can see exactly how thin the record is.

Why are some substances missing?

If the Board has ruled on a substance but never granted a claim tied to it, it is left off. An accusation with no grant behind it is not a finding, and listing it would suggest a link the record does not support.

Does a substance appearing here help my claim?

This page reports what the Board has done, nothing more. Whether an exposure caused a condition in a specific case is a medical and legal question. A VA-accredited representative can help with yours, free.

Where are asbestos, benzene and the rest?

Those have enough decided cases to chart per condition, so each has its own page on the exposures hub.

← All toxic exposures

RateMyVSO. Educational aggregate of published Board of Veterans' Appeals decisions plus public-domain toxicology (ATSDR). Not affiliated with the VA. Not legal or medical advice. Whether any exposure caused any condition in a specific case is a medical and legal question, a VSO representative can help.