The phrase "a harmful material" is correct and usable in written English.
It can be used when referring to substances that can cause damage or adverse effects to health or the environment.
Example: "The factory was fined for improperly disposing of a harmful material that contaminated the local water supply."
Alternatives: "a toxic substance" or "a dangerous material".
At the request of the White House, The Times also urged WikiLeaks to withhold any harmful material from its Web site.
The most effective primary prevention measure is substitution with a less harmful material, followed by engineering and hygiene measures supported by a comprehensive risk assessment.
The suspects face a combined total of 180 charges including but not limited to attempted lewd battery, traveling to meet a minor, drug possession, transmission of harmful material to a minor, to procuring a minor for prostitution and resisting arrest without violence.
What if, instead of simply diverting materials from landfills, they could recover a harmful waste material before it is even released?
The chemical makeup of the PAs is carefully controlled during synthesis, resulting in a low probability of potentially harmful material variation.
In a ruling last year, the Third Circuit barred enforcement of the Child Online Protection Act on the ground that the 1998 law's reliance on "contemporary community standards" to identify harmful material placed an impermissible burden on the operators of Web sites.
This removes a large part of the potentially harmful material that might be vaporized as you smoke.
The department was investigating whether Mr. Foley violated Florida's computer child pornography and exploitation law, and a state law banning the transmittal of harmful material to minors via electronic equipment or devices.
Autophagy is a major pathway for the clearance of harmful material from the cytoplasm.
It also requires annual inspections and certifications and allows the head of the environmental agency to order a plant to take corrective action when storing potentially harmful material.
