Ammonia leak contained after Russian strike hits business in Kyiv district

A tank containing ammonia was damaged at a business in the district, causing some of it to leak. A preliminary estimate put the amount at about 100 liters. Employees at the business contained the leak.

“An inspection of the site recorded an ammonia (NH3) concentration of 91 ppm, or 91 parts of ammonia per million parts of air. Carbon monoxide (CO), nitrogen dioxide (NO2) and hydrogen cyanide (HCN) were not detected. Emergency services reported no risk of another ammonia leak,” the inspectorate added.

The Health Ministry lists the maximum permissible ammonia concentration in populated areas as 0.2 milligrams per cubic meter, or about 0.28 ppm, for a one-time maximum and 0.04 milligrams per cubic meter, or about 0.057 ppm, as a daily average. The inspectorate’s statement indicates that the elevated reading of 91 ppm was taken specifically at the incident site.

The inspectorate advised residents to “avoid spending extended periods outdoors if possible, keep windows closed and stay hydrated” and to follow official updates from the relevant authorities. Specialists are monitoring air quality and assessing the incident’s potential environmental impact.

Russian attack on Kyiv and Kyiv Oblast on Aug. 5

Russia attacked Ukraine overnight on Aug. 5 with four Zircon/Oniks anti-ship missiles and 24 Iskander-M/S-400 ballistic missiles. Air defenses failed to intercept any of them.

Seventeen people were killed and 44 wounded in Kyiv and Kyiv Oblast. Russia primarily targeted warehouses belonging to civilian businesses but also struck infrastructure and a railway station.

The ammonia leak in Kyiv’s Holosiivskyi district followed a strike on a nonresidential site. Warehouses and other nonresidential buildings caught fire in other districts. The large fires caused smoke and worsened air quality in the capital. One person was killed and 15 were injured, the State Emergency Service in Kyiv said.

Ukrzaliznytsia reported deaths on a railway platform in Brovary. Several trains were rerouted after the overnight attack.