Page 5 - nlf1954smog
P. 5

SMOO  - THE  INGREDIENTS




                    Smog  as  it is kmwn  in the  Western  states  (particularly
        Southern California)  is  entirely different  than the  atmospheric  pollu­
        tion  that  is  conmon  in  the  F.iastern  and  mid-Western  cities  of  the  United
        States~  In the· large  cities  to  our  east,  such  as  Pittsburgh,  New  York;
        St.  Louis •and  C~icago,  air pollution  is  caused  primarily  by  soot and
        solid  particles,. resulting from  the  burning  of  coal  and  coke~  In Los
        Angeles,  smog  is the  result of  the  burning  of  liquid and  gaseous  fuels
        (primarily  gasoline,  fuel  oil and  natural gas),  augmented  by  the  proces=
        sing  of these  fuels  and  the  burning  of rubbish  in backyard  iooinera.tors·o

                    In metropolitan  Los  Angeles,  there  is a  total of  about  2 700
                                                                                       1
        tons  per day  of  pollutants  put  into  the  air from various  combusion
        sources.  Of  this  total,  the fraction which .causes  troublea  in  the  form
        of eye  irritation,  reduced  visibility and  vegetation damage  is called
        "organic",  and  totals  about 1 500  tons  per  dayo
                                           9
                    In 1953,  the  make-up  of  these  organic  effluents  in Los  Angeles
        was  as  follovs:

                                    General  Public  Emissions

                               Fuel  gas                 11  tons
                               Fuel  oil                 11
                               Gasoline               1,016
                               Refuse                   41-' .
                                                                             l,452  tons

                                 Petroleum  I n:lustry;  &niosions

                               Fuel  gas                 16
                               Fuel  oil                 12
                                                                                28  tons

                                    Other  Industry Emissions

                               Fuel  gas                   8
                               Fuel  oil                 17
                               Refuse                    29
                                                                            __5_1,.  tons

                                                                            1 1 534  tons
   1   2   3   4   5   6   7   8   9   10