1、环境空气监测结果及气象条件第7章 环境空气影响评价7.1 评级等级及评价范围的确定7.1.1 评价因子和估算参数的选择项目运营后产生的废气主要有:屠宰加工厂区卸货区、屠宰车间内上挂、放血、脱羽、净膛、内脏加工及废羽毛、禽肠等废物清理过程等产生的腥臭味;污水处理站曝气过程以及处理站污泥散发的恶臭;食堂产生的油烟;氨压缩机检修时溢出的氨气以及饲料加工车间产生的粉尘、原料卸货产生的粉尘和原材料仓库产生的恶臭等。根据第3章工程分析对这些污染物源强的分析和计算,本次评价选定粉尘、氨和硫化氢三种污染物来确定项目的大气评价等级。其中,粉尘为有组织排放的污染物,氨和硫化氢为无组织排放的污染物。项目采用环境影响
2、评价技术导则大气环境(HJ /T2.2-2008)要求的Screen3估算软件对粉尘、氨和硫化氢进行估算,其中,粉尘选取PM10作为估算因子。根据导则附录B(规范性附录)“估算模式所需参数及说明”的要求,选定各污染源的估算参数见表7-1表7-1 各污染源的估算参数污染源污染物源参数评价标准C0i(mg/m3)排放速率kg/h长度或管径宽度源高点源排气筒PM10200mm-15m0.150.9面源加工车间氨160m120m9m0.20.15硫化氢160m120m9m0.010.006利用大气环境影响评价系统(AermodSystem)1.3中的Screen3估算软件对PM10、氨、硫化氢的估算过
3、程见附录。7.1.2 评价等级的确定根据以上两表的参数,采用导则要求的Screen3估算软件进行估算,得出各评价因子的估算结果见表7-2:表7-2 拟建项目估算结果评价因子最大地面浓度最大地面浓度距离标准值占标率Pmax(%)PM100.013mg/m3518m0.15mg/m38.92%氨0.018mg/m3163m0.2mg/m39.11%硫化氢0.0007mg/m3163m0.01 mg/m37.29%环境空气评价工作的等级判断依据见表7-3:表7-3 环境空气评价工作等级判据评价工作等级评价工作分级判断依据一级Pmax80,且D10%5km二级其他三级Pmax10或D10%污染源距厂界
4、最近距离由表7-2可见,项目屠宰车间无组织排放的氨最大落地浓度占标率最大,为9.11 %10%,故根据表7-3可判定,本项目的环境空气影响评价等级为三级评价。7.1.3 评价范围的确定根据环境影响评价技术导则大气环境(HJ2.22008)中对评价范围的规定,确定本次大气影响评价范围是以项目厂址中心为中心,半径为2.5km的圆形区域,评价区域的划分及区域内的大气环境保护目标的分布见图1-1。7.2环境空气现状监测与评价北京市理化分析测试中心于2010年10月17日至2010年10月23日对泰安金泉新农业开发有限公司周围的环境空气现状进行了监测。项目环境空气质量现状评价因子中SO2和NO2的监测时
5、间为7天,分别监测两种污染物的日均浓度值和小时浓度值,其中,小时浓度每天采样4次,分别在02:00、8:00、14:00和20:00进行采样,每次采样时间为1小时;日均浓度每天采样一次,每次连续采样时间不少于18小时。PM10的日均浓度每天采样1次,每次连续采样时间不少于12小时。氨和硫化氢连续监测3天,每天在2:00、8:00、14:00和20:00采样。臭气浓度每天在10:00和15:00采样,连续监测3天。同步测定当时的主导风向、最大风速和气温、气压等气象参数。7.2.1 监测布点和监测方法项目环境空气质量现状评价因子SO2、NO2、PM10、氨、硫化氢和臭气浓度的监测布点情况见表7-4
6、和图5-1。表7-4 项目环境空气现状监测布点情况编号位 置方位监测指标设置意义1#德旺有限公司E(200m)SO2、NO2、PM10、氨、硫化氢、臭气浓度了解项目所在区域常年主导风向上风向的环境质量现状2#良村ESO2、NO2、PM10了解项目所在区域常年主导风向上风向的环境质量现状3#程家楼村NE氨、硫化氢、臭气浓度了解项目最近敏感点氨、硫化氢、臭气浓度的环境质量现状4#郭家泉村N氨、硫化氢、臭气浓度了解项目最近敏感点氨、硫化氢、臭气浓度的环境质量现状5#陈家庄村NWSO2、NO2、PM10了解项目所在区域常年主导风向下风向的环境质量现状拟建项目环境空气质量现状监测各监测项目的分析方法、方
7、法依据以及检出下限见表7-5。表7-5 各监测项目的监测方法分析项目分析方法(来源)分析方法检出限二氧化氮(NO2)GB/T 15435-1995Saltzma 法小时0.005mg/m3日均0.003mg/m3二氧化硫(SO2)HJ 482-2009甲醛吸收-副玫瑰苯胺分光光度法小时0.007mg/m3日均0.004mg/m3PM10GB 6921-1986重量法0.001mg/m3氨HJ 533-2009纳式试剂比色法0.01mg/m3硫化氢GB 11742-1989气相色谱法0.003mg/m3臭气浓度GB/T 14675-199310(无量纲)7.2.2监测结果拟建项目环境空气环境质量
8、现状的监测结果及监测期间气象条件分别见表7-6到表7-9。表7-6 SO2、NO2和PM10的环境质量现状监测结果日期二氧化氮(mg/m3)二氧化硫(mg/m3)PM10(mg/m3)1#2#5#1#2#5#1#2#5#10.10.1702:000.0140.0140.0180.0380.0330.0640.1400.2340.11508:000.0230.0240.0220.0510.0490.03914:000.0130.0180.0340.0340.0320.03920:000.0330.0330.0280.0670.0570.064日均0.0220.0230.0280.0460.044
9、0.05010.10.1802:000.0500.0450.0530.0490.0400.0570.1610.2900.12308:000.0420.0530.0630.0390.0460.0514:000.0360.0270.0460.0480.0330.04720:000.0430.0530.0330.0510.0640.063日均0.0410.0440.0500.0440.0470.05210.10.1902:000.0330.0320.0300.0550.0430.0550.1670.2680.14708:000.0500.0450.0550.0420.0670.06714:000.0
10、660.0340.0270.0360.0480.05020:000.0250.0320.0750.0750.0860.077日均0.0420.0340.0460.0510.0600.06110.10.2002:000.0320.0580.0580.0380.0750.0960.1110.1810.16808:000.0440.0340.0430.0450.0440.05914:000.0320.0350.0410.0430.0320.03220:000.0300.0500.0530.0500.0520.054日均0.0350.0430.0490.0430.0510.06010.10.2102:
11、000.0280.0230.0450.0450.0430.0410.1550.1640.14908:000.0380.0270.0530.0500.0450.05614:000.0300.0140.0340.0330.0310.04420:000.0440.0360.0510.0450.0640.070日均0.0330.0280.0450.0420.0440.05110.10.2202:000.0250.0360.0390.0430.0520.0570.1320.1700.10508:000.0290.0480.0460.0460.0410.04214:000.0190.0320.0370.0
12、290.0450.03520:000.0230.0420.0420.0550.0630.068日均0.0260.0370.0400.0420.0480.05210.10.2302:000.0130.0190.0260.0370.0550.0410.1460.2250.13308:000.0230.0240.0380.0490.0390.05214:000.0150.0150.0330.0310.0370.03720:000.0300.0230.0390.0740.0640.059日均0.0180.0210.0330.0490.0490.047表7-7 氨和硫化氢的环境质量现状监测结果日期氨(m
13、g/m3)硫化氢(mg/m3)1#3#4#1#3#4#10.10.1802:000.110.110.180.0060.0080.00908:000.150.070.160.0040.0060.00814:000.230.120.190.0030.0030.00320:000.150.040.190.0030.0080.00510.10.1902:000.070.180.120.0050.0080.00908:000.080.080.120.0110.0090.00714:000.080.160.050.0060.0070.00920:000.110.50.190.0050.0060.00610
14、.10.2002:000.070.110.100.0060.0050.00508:000.090.080.070.0110.0080.00414:000.070.040.210.0120.0050.00820:000.140.090.140.0090.0060.009表7-8 臭气浓度的环境质量现状监测结果日期臭气浓度(无量纲)1#3#4#10.10.1810:0019131615:0018151310.10.1910:0015161215:0017181810.10.2010:0016161515:00171419表7-9 监测期间气象条件日期监测点位温度()湿度 (%RH)风向风速(m/s
15、)总云量低云量大气压(kPa)10.10.1702:001#德旺15.382.2东1.527599.708:0015.785.4东北0.798599.814:0023.552.1东1.247499.520:0017.571.5东2.067599.602:002#良村15.581.8东1.547599.708:0015.984.9东北0.768599.814:0023.452.5东1.217499.520:0017.671.2东2.087599.602:005#陈家庄村15.482.0东1.517599.708:0015.885.7东北0.778599.814:0023.552.0东1.2374
16、99.520:0017.471.7东2.057599.610.10.1802:001#德旺14.383.1东北2.308799.608:0014.987.3西0.968699.810:0018.874.0西0.627599.714:0022.453.5西北0.896499.515:0022.051.7西北1.027499.520:0016.770.0东南1.459799.602:002#良村14.283.4东北2.348799.608:0015.186.8西0.968699.814:0022.253.9西北0.856499.520:0016.570.5东南1.479799.602:003#成家
17、楼村14.582.7东北2.368799.608:0015.386.3西0.948699.810:0018.674.3西0.667599.714:0022.154.2西北0.836499.515:0022.251.4西北1.067499.520:0016.470.7东南1.439799.602:004#郭家泉村14.183.6东北2.328799.608:0014.887.5西0.928699.814:0022.553.3西北0.876499.520:0016.869.8东南1.449799.602:005#陈家庄村14.482.9东北2.328799.608:0015.087.0西0.928
18、699.810:0018.274.9西0.697599.714:0022.353.8西北0.876499.515:0022.251.4西北1.067499.520:0016.670.3东南1.449799.610.10.1902:001#德旺15.4100东南0.8110999.608:0015.699.9东0.85101099.710:0017.479.2东北1.0210899.714:0021.460.5西北1.717599.615:0021.866.4北1.928599.720:0014.184.3东北3.229799.702:002#良村15.2100东南0.8410999.608:0
19、015.899.9东0.87101099.714:0021.660.1西北1.747599.620:0014.084.5东北3.259799.702:003#成家楼村15.1100东南0.8310999.608:0015.999.8东0.84101099.710:0017.579.7东北1.0610899.714:0021.560.3西北1.727599.615:0021.766.3北1.968599.720:0014.284.1东北3.279799.702:004#郭家泉村15.0100东南0.8510999.608:0015.799.9东0.88101099.710:0017.479.5东
20、北1.0010899.714:0021.360.8西北1.757599.615:0021.566.6北1.998599.720:0014.383.9东北3.249799.702:005#陈家庄村15.3100东南0.8710999.608:0015.599.9东0.86101099.714:0021.560.8西北1.707599.620:0014.283.9东北3.269799.710.10.2002:001#德旺14.481.4东1.527699.708:0014.081.5东3.149799.910:0015.878.4南1.099699.814:0017.662.7西南1.247599
21、.615:0017.267.0西1.207599.620:0014.072.8西北1.328599.702:002#良村14.681.0东1.547699.708:0014.281.1东3.179799.914:0017.563.0西南1.227599.620:0014.372.1西北1.358599.702:003#成家楼村14.381.7东1.567699.708:0014.480.7东3.129799.910:0015.778.3南1.059699.814:0017.862.3西南1.267599.615:0017.167.3西1.267599.620:0014.272.3西北1.368
22、599.702:004#郭家泉村14.581.2东1.537699.708:0014.181.3东3.169799.910:0015.978.6南1.039699.814:0017.563.1西南1.217599.615:0017.266.9西1.207599.620:0014.471.8西北1.378599.702:005#陈家庄村14.182.1东1.57699.708:0014.380.0东3.159799.914:0017.363.6西南1.257599.620:0014.571.6西北1.348599.710.10.2102:001#德旺13.876.4东北1.7554100.908
23、:0013.377.5东1.3454100.914:0019.653.2南1.7243100.620:0013.089.1静风0.2064100.502:002#良村13.676.6东北1.7354100.908:0013.577.0东1.3654100.914:0019.353.8南1.7643100.620:0013.188.7静风0.2064100.502:005#陈家庄村13.576.9东北1.7254100.908:0013.277.8东1.3254100.914:0019.453.6南1.7443100.620:0013.288.5静风0.2064100.510.10.2202:001#德旺10.588.4东1.245499.4