dunno...
my brother works @ WTC & he says they can't see any surrounding & warned not to go out......
If this indicator rises up to 200 it's toxic to inhale......
that will be a mass evacuation of ppl from CMB....
මොන මල හත්තිලව්වක් වෙයිද මන්දා පොඩි උනුත් තාම ඉස්කෝල...