LA PORTE, Texas - La Porte and Seabrook issued the "all clear" late Sunday night after asking residents to shelter in place after reports of an odor.
The La Porte Office of Emergency Management said they received multiple calls regarding "an odor and irritant in the air" in La Porte.
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La Porte officials asked the city to shelter in place until they could gather more information. Seabrook also issued a shelter-in-place and said it was the result of an incident that occurred in Deer Park. Residents were asked to go indoors and turn off their A/C systems.
Harris County Pollution Control was investigating the source of the odor.
On Sunday night,, HCPC said their emergency responders were responding to the Lubrizol Plant at 41 Tidal Road in Deer Park where a chemical leak was reported.
HCPC initially said the chemical compound that was released was hydrogen sulfide, but officials later determined that hydrogen sulfide was not the primary chemical compound of interest in the odor nuisance.
In a CAER message, Lubrizol DP said there was an odor incident tied to a rail car vapor release. The company said they were working with local authorities to resolve the issue and were monitoring air quality. Lubrizol DP said, "Other than nuisance odors, there is no impact or risk to the surrounding community."
Just before 6:30 a.m. Monday, Lubrizol DP said they were downgrading the odor incident to Level 2. In the CAER message, Lubrizol DP said, "There may still be potential for nuisance odors, however there remains no impact or risk to the surrounding community. We continue to mitigate this issue while working with local authorities."