=LDR 22 4500 =001 1118 =082 04$a2000 BEA =100 1\$aBeattie, Susan =245 10$aA determination of diurnal and weekly cycles of PM10 concentration and flux in central Dublin air by direct counting method =260 \\$aDublin :$bUniversity of Dublin, Trinity College,$c2000 =650 \0$aDissertations =852 \\$bGeography Basement$h2000 BEA