# Effects of heat  unspecified at U.S. Postal Service
> OSHA SIR `2025066025` · 6/24/2025 · WOBURN, MASSACHUSETTS
## Severity
- **1 hospitalization**
- **Body part:** BODY SYSTEMS
- **Nature of injury:** Effects of heat  unspecified
## Cause
- **Event:** Exposure to environmental heat  outdoor
- **Source:** Heat environmental
- **Secondary source:** Secondary source not applicable
## Employer
- **Name:** U.S. Postal Service
- **Location:** 462 Washington Street, WOBURN, MASSACHUSETTS, 01801
- **NAICS:** 491110
- **Jurisdiction:** 1
## Narrative

An employee had completed an 11-hour shift delivering mail. When he went home, he began to feel unwell and was hospitalized for heat illness.

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