【正文】 個污染物），及第i個污染物的地面濃度達(dá)標(biāo)準(zhǔn)限值10％時所對應(yīng)的最遠(yuǎn)距離D10％。一、 項目概況某項目廢氣污染物主要為SONOPM10，數(shù)據(jù)如下：煙氣排放速度m/s煙囪高度m煙囪內(nèi)徑m煙氣排放溫度℃環(huán)境溫度℃SO2排放速率g/sNO2排放速率g/sPM10排放速率g/s2480311622175210200估算模式SCREEN3 是一個單源高斯煙羽模式，可計算點源、火炬源、面源、和體源的最大地面濃度，以及下洗和岸邊熏煙等特殊條件下的最大地面濃度。其中Pi定義為：式中：Pi——第i個污染物的最大地面質(zhì)量濃度占標(biāo)率，%；Ci——采用估算模式計算出的第i個污染物的最大地面質(zhì)量濃度，mg/m3；Coi——第i個污染物的環(huán)境空氣質(zhì)量濃度標(biāo)準(zhǔn)，mg/m3。對某些上述標(biāo)準(zhǔn)中都未包含的污染物，一般可參照國外有關(guān)標(biāo)準(zhǔn)選用，但應(yīng)做出說明，報環(huán)保主管部門批準(zhǔn)后執(zhí)行。 MOM. FLUX = M**4/S**2. *** FULL METEOROLOGY *** ********************************** *** SCREEN AUTOMATED DISTANCES *** ********************************** *** TERRAIN HEIGHT OF 0. M ABOVE STACK BASE USED FOR FOLLOWING DISTANCES *** DIST CONC U10M USTK MIX HT PLUME SIGMA SIGMA (M) (UG/M**3) STAB (M/S) (M/S) (M) HT (M) Y (M) Z (M) DWASH 10. .0000 1 NO 100. .1420E09 5 NO 200. .2836E02 5 NO 300. .3559E02 5 NO 400. .4529E02 5 NO 500. .9532 1 NO 600. 1 NO 700. 1 NO 800. 1 NO 900. 1 NO 1000. 1 NO 1100. 1 NO 1200. 1 NO 1300. 1 NO 1400. 1 NO 1500. 1 NO 1600. 1 NO 1700. 1 NO 1800. 1 NO 1900. 1 NO 2000. 1 NO 2100. 1 NO 2200. 1 NO 2300. 1 NO 2400. 1 NO 2500. 1 NO 2600. 1 NO 2700. 1 NO 2800. 1 NO 2900. 1 NO 3000. 1 NO 3500. 2 NO 4000. 2 NO 4500. 2 NO 5000. 2 NO 5500. 2 NO 6000. 2 NO 6500. 2 NO 7000. 2 NO 7500. 2 NO 8000. 3 NO 8500. 3 NO 9000. 3 NO 9500. 3 NO 10000. 3 NO 15000. 3 NO 20000. 3 NO 25000. 5 NO MAXIMUM 1HR CONCENTRATION AT OR BEYOND 10. M: 1076. 1 NO DWASH= MEANS NO CALC MADE (CONC = ) DWASH=NO MEANS NO BUILDING DOWNWASH USED DWASH=HS MEANS HUBERSNYDER DOWNWASH USED DWASH=SS MEANS SCHULMANSCIRE DOWNWASH USED DWASH=NA MEANS DOWNWASH NOT APPLICABLE, X3*LB *************************************** *** SUMMARY OF SCREEN MODEL RESULTS *** *************************************** CALCULATION MAX CONC DIST TO TERRAIN PROCEDURE (UG/M**3) MAX (M) HT (M) SIMPLE TERRAIN 1076. 0. *************************************************** 結(jié)果分析與計算取計算結(jié)果（DIST CONC U10M USTK MIX HT PLUME SIGMA SIGMA）中的計算的距離（DIST）和其相應(yīng)的落地濃度（CONC）兩排數(shù)據(jù)繪制曲線圖如下 MOM. FLUX = M**4/S**2. *** FULL METEOROLOGY *** ********************************** *** SCREEN AUTOMATED DISTANCES *** ********************************** *** TERRAIN HEIGHT OF 0. M ABOVE STACK BASE USED FOR FOLLOWING DISTANCES *** DIST CONC U10M USTK MIX HT PLUME SIGMA SIGMA (M) (UG/M**3) STAB (M/S) (M/S) (M) HT (M) Y (M) Z (M) DWASH 10. .0000 1 NO 100. .1827E09 5 NO 200. .1484E02 5 NO 300. .1052E01 1 NO 400. 1 NO 500. 1 NO 600. 1 NO 700. 1 NO 800. 1 NO 900. 1 NO 1000. 1 NO 1100. 1 NO 1200. 1 NO 1300. 1 NO 1400. 1 NO 1500. 1 NO 1600. 1 NO 1700. 1 NO 1800. 1 NO 1900. 1 NO 2000. 1 NO 2100. 1 NO 2200. 1 NO 2300. 1 NO 2400. 1 NO 2500. 1 NO 2600. 2 NO 2700. 2 NO 2800. 2 NO 2900. 2 NO 3000. 2 NO 3500. 2