21.   In addition to monetary damages, the suit seeks injunctions to halt the alleged false advertising and the removal of harmful substances from cigarettes.

22.   Kent police said tests on the powder found no traces of harmful substances.

23.   No radiation or other harmful substances leaked during the accident at the second block of the plant, radio reported.

24.   Preliminary tests found no harmful substances, police said.

25.   Radiation and chemical tests did not uncover any harmful substances, she said.

26.   Some children of nuclear weapons plants workers who died from exposure to radiation and other harmful substances during the Cold War may not be eligible for survivor benefits.

27.   The Chinese did not use to eat soybeans like other legumes because then it contained large amounts of harmful substances.

28.   The historical cathedral, also a popular tourist spot, was reopened Monday after police said tests found no traces of harmful substances in the powder.

29.   The powder in both cases tested negative for harmful substances.

30.   The UNIDCP can only hope to raise awareness of these harmful substances, reduce their demand, and continue with investigation and research into the drugs.