Mold Remediation & Water Damage Serving South Florida & The Bahamas
Does your house smell of rotten eggs or sulfur, If so you may have one of the estimated
30,000 plus homes in Florida that has what is now know as Chinese Drywall that is
defective and is releasing toxic corrosive gases. Is your Air conditioning coils,
refrigerators, TV’s corroding and failing in a short period of time often within
a year or less. Your Silverware or jewelry may be tarnishing within months or even
soonerthis could be possible results of gases emitted by defective drywall. These
gases are reported to include carbon disulfide, carbonyl sulfide, hydrogen sulfide,
and mercaptan,It has been reported (4-09) that strontium sulfide or strontium sulfate
may be a contaminant contributing to defective drywall.
Strontium is a chemical element with the symbol Sr and the atomic number 38. An
alkaline earth metal, strontium is a soft silver" white or Yellowish metallic element
that is highly reactive chemically. The metal turns yellow when exposed to air. It
occurs naturally in the minerals Clestine and strontianite. The 90 Sr isotope is
present in radioactive fallout and has a half life of 28.90 years. Both strontium
and strontianite are named after Strontian, a village in Scotland near which the
mineral was first discovered.
Strontium is a grey/silvery metal that is softer than calcium and even more reactive
in water, with which strontium reacts on contact to produce strontium hydroxide and
hydrogen gas. It burns in air to produce both strontium oxide and strontium nitride,
but since it does not react with nitrogen below 380°C it will only form the oxide
spontaneously at room temperature. It should be kept under kerosene to prevent oxidation;
freshly exposed strontium metal rapidly turns a yellowish color with the formation
of the oxide. Finely powdered
Strontium metal will ignite spontaneously in air at room temperature. Volatile strontium
salts impart a crimson color to flames, and these salts are used in pyrotechnics
and in the production of flares. Natural strontium is a mixture of four radiostable
The federal government does not regulate the chemical ingredients of imported drywall,
however testing of drywall manufactured in the USA and imported drywall from China
using XRF has shown the imported drywall has consistently higher levels of Strontium.
The initial analysis shows the presence of strontium at 2570ppm and 2670ppm in the
Chinese drywall samples, whereas strontium was detected in the US manufactured drywall
at 244ppm up to 1130ppm.
These findings are consistent with the previous EPA studies of different samples
that showed elevated levels of Strontium and sulfur in Chinese drywall.
Chinese Drywall Gas Readings
This Home that was Tested had Chinese Drywall downstairs & N. Armendariz upstairs,
the readings you are looking at are of the N. Armendariz. The readings came in on
the low side of chinese or imported drywall as can be seen in the graph to the right.
This is a Baseline reading of the gases being released by USA made drywall & imported