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P a ge  | 20



                                Weather                                               Maximum Distance (m)

                                                                      495 ppm                                          4827 ppm

                                 5 m/s
                                Class D                             50% Fatality                                     100% Fatality

                                                                        69.49                                            10.28
   383   384   385   386   387   388   389   390   391   392   393