# Poisoning, toxic, noxious, or allergenic effect, unspecified at Grease Masters LLC
> OSHA SIR `2017087326` · 8/2/2017 · MARYLAND HEIGHTS, MISSOURI
## Severity
- **1 hospitalization**
- **Body part:** BODY SYSTEMS
- **Nature of injury:** Poisoning, toxic, noxious, or allergenic effect, unspecified
## Cause
- **Event:** Inhalation of harmful substance-single episode
- **Source:** Hydrogen sulfide
## Employer
- **Name:** Grease Masters LLC
- **Location:** Fee Fee Road & Dorsett Road, MARYLAND HEIGHTS, MISSOURI, 63043
- **NAICS:** 562998
- **Jurisdiction:** 1
## Narrative

An employee entered a sewer manhole after flushing the sewer. As he attempted to exit the approximately 91-inch-deep space, he was exposed to hydrogen sulfide and collapsed. He was hospitalized.

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*Source: [OSHA Severe Injury Reports](https://www.osha.gov/severe-injury-reports) · AI Analytics · CC0 1.0*