otion ▁to ▁duty " ▁in ▁carrying ▁out ▁this ▁mission , ▁Bull ▁received ▁the ▁post hum ous ▁award ▁of ▁the ▁Dist ingu ished ▁F lying ▁Cross . ▁ ▁Names ake ▁In ▁ 1 9 4 3 , ▁two ▁ships ▁were ▁named ▁USS ▁Bull ▁in ▁L t . ▁Bull ' s ▁honor . ▁ ▁References ▁ ▁Category : 1 9 1 4 ▁birth s ▁Category : 1 9 4 2 ▁death s ▁Category : Mil it ary ▁personnel ▁from ▁New ▁York ▁City ▁Category : Re cip ients ▁of ▁the ▁Dist ingu ished ▁F lying ▁Cross ▁( Un ited ▁States ) ▁Category : Un ited ▁States ▁Navy ▁officers ▁Category : Un ited ▁States ▁Navy ▁pil ots ▁of ▁World ▁War ▁II <0x0A> </s> ▁Part ic ulate ▁poll ution ▁is ▁poll ution ▁of ▁an ▁environment ▁that ▁consists ▁of ▁particles ▁susp ended ▁in ▁some ▁medium . ▁There ▁are ▁three ▁primary ▁forms : ▁atmos pher ic ▁partic ulate ▁matter , ▁marine ▁de br is , ▁and ▁space ▁de br is . ▁Some ▁particles ▁are ▁released ▁directly ▁from ▁a ▁specific ▁source , ▁while ▁others ▁form ▁in ▁chemical ▁re actions ▁in ▁the ▁atmosphere . ▁Part ic ulate ▁poll ution ▁can ▁be ▁derived ▁from ▁either ▁natural ▁sources ▁or ▁anth rop ogen ic ▁processes . ▁ ▁At mos pher ic ▁partic ulate ▁matter ▁ ▁At mos pher ic ▁partic ulate ▁matter , ▁also ▁known ▁as ▁partic ulate ▁matter , ▁or ▁PM , ▁describes ▁sol ids ▁and / or ▁liquid ▁particles ▁susp ended ▁in ▁a ▁gas , ▁most ▁commonly ▁the ▁Earth ' s ▁atmosphere .