Salt Lake Telegram | 1925-01-25 | Page 9 | Smoke Records Encouraging, Alter Says

r i 1 SMOKE MOKE l TEA AY M Meteorologist De Declares lares Tendency to Smoke Fogs Is Less Than Formerly At a a. meeting of the smokeless city ty committe of the chamber of Commerce Commerce- at the chamber Frida Friday a Report report was submitted on the weather bureau smoke records by byj Ij 11 j Cecil Alter meteorologist in charge of the local bureau and and was accepted by the committee Saturday Satur Satur- Jay day aY The report is as follows i b Records of the duration and Density of smoke in Salt Lake City maintained d by the United States 9 weather J bureau point decisively to tie fact that the smoke nuisance Is greatly lessened of which everyone is a very well welt aware as ns during even Ie o far r coldest and quietest weather of late ate there has been very little tendencY tendency tendency tend tend- ency toward persistent smokes and cn fogs moke-fogs so well known in years ast St St. Records are now available for or r six sL years the following compilation tion giving the values for October 5 to December 31 in 1924 for comparison comparison comparison com com- parison with the year six-year average i f 15 fr This year vear there were hours t j I of jf light smoke over ovel the city ex- ex sting as a general atmospheric condition con con- il the year six-year average is J There were four fifty days filth with light smoke this year com com- 11 lared ared red with a year six-year average of two sixty days Dense smoke or smoke moke so dense as ne to obscure ob obI ob- ob fl I cots at a o distance of 1000 feet r endured hours this year the J J year Six year lx-year average being 16 hours i Dense pense smoke occurred on ten days bo lie year six-year average being sixteen II i I Says oats i The prevalence pre of smoke is of ourse very ely closely related to the duration of low temperatures AsI As- As I a temperature of 40 degrees I n the atmosphere to represent the condition which requires heating in and homes we find that I I there ther were 1157 heating hours with temperature of 40 degrees or J t lower ewer this year compared with an for six years ears of 1148 h hours urs Probably heavy heating results gen- gen rally when temperatures are 20 degrees degrees derees de- de grees rees or lower and thus we find hat at heavy heating was required this his this year ear on hours compared with a year six-year average of ours were one fifty-one days hen heating was necessary this ear car the average being sixty-five sixty II lays a S while t there were fifteen da days s 's when nhen heavy heating was naces- naces i sary this year as compared with witha a year six average of ten days Light winds of say seven miles per hour or less tend to favor the accumulation of smoke over the cit city while heavier winds tend to clarify the atmosphere the higher the wind velocity the clearer the atmosphere becomes ordinarily The number of heating hours with temperatures temperatures temperatures tem tem- of 40 degrees or lower combined with winds of seven miles mUes per hour or less was 1009 this year ea as compared with a year six-year average average average aver aver- age of The number of such I 1 da days day's s this this this' year year was six fifty-six the year six-year average being sixty Thus in every method of com comparing par ing the evidence is plain that ex existing existing ex- ex x- x smoke abatement practices are highly successful