pollutant units emission standard coal-fired petroleum coke-fired
pollutant
units
emission standard
coal fired
petroleum coke fired
number
number minimum maximum
number minimum maximum
text text number numberspan numberspan
so2 lb/mmbtu ≤ 0.15 0.0-0.04 0.03-0.13
what is the total number of pollutants that are measured with an lb/mmbtu unit ?
WP VBD-AUX DT JJ NN IN NNS WDT VBD-AUX VBN IN DT NN NN .
7
select count ( c1 ) from w where c2 = 'lb/mmbtu'