11.   The five were arrested between Friday and Monday, and have been charged with conspiracy to discharge a noxious substance with an intention to disturb people.

a. + substance >>共 662
banned 18.50%
toxic 6.65%
illegal 3.78%
radioactive 3.11%
powdery 2.87%
dangerous 2.77%
performance-enhancing 2.43%
natural 2.26%
chemical 1.72%
white 1.38%
noxious 0.37%
noxious + n. >>共 91
fume 23.86%
gas 12.28%
weed 5.96%
odor 4.91%
chemical 4.21%
substance 3.86%
emission 2.81%
smoke 2.46%
cloud 2.11%
agent 1.75%
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