Inhalation of harmful substances is common in the workplace.
Ships have damaged the reef ecosystem through anchoring, groundings, collisions and the discharge of harmful substances.
These provide quick and easy insulation while containing natural dyes with no trace of harmful substances.
Nevertheless, this practice has environmental and social concerns due to the presence of harmful substances in wastewater.
Kazakh emergency officials said the concentration of harmful substances around the site exceeded permissible levels by at least 1,000 times.
The focus of much research has been on monitoring such pollution indicators as oxygen depletion in the deep basins and the concentration of harmful substances in aquatic birdlife.
The different methods of stone processing in different regions of Ukraine in connection with various concentrations of harmful substances were recommended to use.
Oil storage tank zones possessing large amounts of harmful substances and energy with great probability of accidental release, can pose risks to personnel, equipment facilities and environment.
In order to acquire an enhanced resistance against penetration of harmful substances, a good and effective bonding is necessary at the concrete interfaces.
Great efforts are made to limit the release of harmful substances into the environment through air pollution control, wastewater treatment, solid-waste management, hazardous-waste management, and recycling.
Pollution control, in environmental engineering, any of a variety of means employed to limit damage done to the environment by the discharge of harmful substances and energies.
