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1989 Air Toxics Monitoring Data James M. Hazlett II - Air Toxics Laboratory Manager Robert E. Bailey - Environmental Quality Chemist Z<(oo & S 7 Louis iana Department of Environmental Quality "OMF - Technical Services Division Air Toxics Laboratory June 25, 1990 DO 178530 r. ONFTDFNTTAI 1989 Air Toxics Monitoring Data I. INTRODUCTION The Louisiana Department of Environmental Quality (LDEQ) has operated the air toxics monitoring station since 1984. This station, located near the Louisiana State. Capitol, is one of the few monitoring sites in the country to provide round-the-clock monitoring of Volatile Organic Compounds. 1989 brought a number of changes to the LDEQ air toxics monitoring program. In July of 1989 the old Radian 110A system was replaced by a continuous monitoring system possessing much greater analytical capabilities. The new system consists of a XonT ch Model 930 Organic Vapor Concentrator, a Hewlett Packard Model 5890 Gas Chromatograph fitted with a Flame Ionization Detector (FID) & a Electrolytic Conductivity Detector (ELCD), and dual Hewlett Packard Model 3396 computing integrators. The XonTech sample concentrator contains two Tenax/Charcoal traps which alternate between sample collection and sample injection. Samples are collected hourly over a 57 minute time period. The Hewlett Packard Gas Chromatograph is equipped with a sample splitter which divides each sample between two analytical columns. The column connected to the FID is a megabore capillary (0.53 mm O.D. x 50 m long) with a 2.53 urn bonded film of SPB-1 (methyl silicone). Connected to the ELCD is a smaller capillary (0.32 mm O.D. x 25 m long) with a 1.0 urn film of SPB-1. The FID is used for the analysis of selected alkane and aromatic hydrocarbon species while the ELCD is used to analyze selected chlorinated hydrocarbon species. Each detector is connected to its own computing integrator which identifies and quantitates the eluting compounds. A value for total hydrocarbons is computed by multiplying the total area of all peaks detected on the FID by the response factor for n-hexane. A value for total chlorinated hydrocarbons is computed by multiplying the total area of all peaks detected on the ELCD by the response factor for ethylene dichloride. All data collected is written to unique data files within each integrator. Periodically each integrator is polled by a portable computer which then collects the data for editing and transfer onto the agency database. The system is calibrated three times a week utilizing compressed gas cylinders containing known amounts of the compounds of interest. The calibrations are scheduled on a random basis to avoid any biasing of the data. During May of 1989 the LDEQ Toxic Air Monitoring System (TAMS) was placed into operation. As of December 31, 1989 four samplers were in operation around the greater Baton Rouge area. These samplers are DO 1?8531 CONF T DFNT T Al located at the Capitol Site, Baker, Port Allen, and Geismar. Each sampler collects ambient air samples onto Teriax Cartridges which are subsequently transported to the Air Toxics Laboratory for GC/MS analysis. Samples are collected at each site once a week. This report will summarize the analytical data generated during the 1989 sampling period. DO 17850? CONFTDFNT TAl II. CAPITOL SITE CONTINUOUS MONITORING DATA During the calendar year 1989 the continuous monitoring station collected and analyzed a total of 6221 validated ambient air samples on the FID detector. a total of 3436 of these samples were also analyzed by the ELCD detector. These figures are lower than the data capture figures for 1988 for a number of reasons. During its last few months of operation the Radian 110A system was plagued by a number of breakdowns and computer failures which resulted in a loss of data. Additionally once the new equipment was installed it took some time to remove all of the "bugs" from the system. Most of the initial effort on the new system was directed toward getting the FID going in order to provide hydrocarbon data for an ongoing ozone study. The ELCD detector was not used at this time because of some flow problems. The splitter and dual column configuration was not installed in the Gas Chromatograph until late November. For that reason there is `no data on the ELCD detector for nearly four months. It is currently felt that once the new system is sufficiently debugged it will be capable of providing about 700 sample analyses per month on each detector. The mean average level of total hydrocarbons measured during 1989 was 43.3 parts per million by volume (ppbv) which is about 10% lower than the level measured in 1988. The mean average level of chlorinated VOC measured in 1989 was 2.8 ppbv which is about the same as the 1988 level. Table_1 provides a set of descriptive statistics for all of the target compounds analyzed. As found in all of the previous monitoring data, the median concentration for each of the target compounds is considerably lower that the mean average concentration. The maximum level of total hydrocarbons measured during 1989 was 3031.1 ppbv while the maximum level of chlorinated hydrocarbons measured was 208.9 ppbv. The most striking fact about the monitoring data is that the levels of volatile organic compounds observed are highly variable. During any given twenty-four hour period the range of measured concentrations can be quite high. The high standard deviations for all of the target compounds demonstrate the high degree of variability in the measured concentrations. Some of this variability can be seen when the monitoring data is grouped into monthly mean averages (_Table _2__ ) . The causes of this variability can best be explained by examining what effects the site location and the local meteorology have upon the analytical data. DO 1PBS33 OONFTDFNTTAI a*x w a of **#-+'**>> Due to the close proximity of the monitoring site to sev ral large industrial facilities the on factor that can most dramatically influence the levels of compounds measured is the wind direction. Figure _ 1 illustrates how the concentrations vary with the wind direction. In this diagram the data for each compound was sqrted into small wind sector groups and a mean average for each group was computed. In most cases the highest average levels are recorded when the wind was from a north to northwesterly direction. There are several petrochemical industries located in this direction which generally explains the higher readings. Weather can effectj the data in many other ways. During periods of stagnant air when therje is very little wind the concentrations of volatile organic compounds can reach very high levels. Conversely during periods of rain the concentrations can drop to very low levels. Therefore- ijt can be simply stated that changing weather patterns can result in a change in the observed concentrations of the target compounds. Table 3 provides the diurnal variations of the target compound concentrations by sorting the data into groups based upon the hour of the day the samples were collected. Generally, the highest levels of hydrocarbons occurred around _7_: 00__ am while the lowest ~ levels were found around noon. This trend is most likely due to two factors. First many of these compounds play a significant role in the photochemical reactions involved in the formation of ozone. Secondly, a short time after the sun comes up in the morning the mixing height begins to move upward. As this layer of air expands it begins dilute the concentrations of volatile organic compounds built up during the night and early morning hours. However, it should be pointed out that because of the proximity of the monitoring site to several point sources of hydrocarbons, the daily maximum does not always follow this pattern. Upon close examination of the daily data it can be seen that the daily maximum can occur at virtually, ..any, time of the day. Generally the chlorinated hydrocarbons show, little diurnal variation in concentration. Table 4 demonstrates how the concentrations of compounds measured varied with the day of the week. Generally the observed levels for most compounds was highest on Tuesdays and lowest on Sundays. When the averages for all samples collected on the weekdays was compared to the averages for all samples collected on the weekends, no significant differences could be seen. DO 1 OONFTDFNTTAl III. TAMS DATA The TAMS network began operation in June of 1989 collecting samples at each site on a weekly basis. The samples were collected on Tenax cartridges composed of a glass tube ( 5/8" O.D. x 7" long ) packed with 3 grams of Tenax TA. After sample collection the Tenax cartridges were transported back to the Air Toxics Laboratory where they were analyzed by Gas Chromatography/Mass Spectroscopy (GC/MS). The analytical protocol used for the analysis was EPA Method TO-1. Two types of sampling equipment were utilized in the sampling program. At the Capitol and Baker sites XonTech Model 920 samplers were installed. This type of sampler utilizes mass flow controllers to maintain a stable and accurate flow. Each sampler has three sampling channels capable of independent operation. This configuration permitted the use of two different sampling strategies. Each sampling day one channel was programed to sample from 6:00 am to 10:00 am while another channel was programmed to sample from 12:00 am to .10:00 am. The third channel collected a duplicate sample from 12:00 am to 10:00 am. At the Port Allen and Geismar sites Andersen VOTA samplers were installed. These samplers are capable of using only one sampling strategy and thus they were programmed to sample from 12:00 am to 10:00 am. A secondary (backup) tube was installed in a piggy back fashion on the active sampling channel in order to provide breakthrough data. The GC/MS was calibrated for a total of twenty-three target compounds. Table 5 provides the mean average concentrations of these compounds detected a each site. The measured levels of benzene at the Baker and Geismar sites were somewhat higher than the levels found at the Capitol and Port Allen Sites. The Geismar site had levels of ethylbenzene that were over five times higher than the amounts measured at any of the other sites. The Port Allen site had the highest detected levels of ethylene dichloride. The samples collected from 6:00 am to 10:00 am generally indicated somewhat lower concentrations than the samples collected from midnight to 10:00 am. A more detailed summary of the results from each site is provided in the appendix. All samples "collected were also subjected to qualitative analysis utilizing a computer library search routine to identify the spectra generated from the chromatographic peaks. In virtually all of the samples analyzed about 95% of the compounds detected were DO 178535 OONFTDFNTTAl. hydrocarbons. The pattern of hydrocarbons found is very similar to the classic profile of gasoline which seems to sugg st that mobile sources and evaporative emissions are a major contributor to the emissions of these compounds. The analysis of the Geismar samples detected a significant amount of styrene present at that location. During the warm weather months the analysis of samples from the Baker site detected significant amounts of natural hydrocarbons such as isoprene, alpha pinene, beta pinene, and limonene. A list of all compounds identified qualitatively is provided in Table 6. -Table 7 provides a comparison of data generated at the capitol site by three different sampling and analysis programs. On this table the mean average data for the two TAMS strategies are compared to the mean averages generated by the Continuous Monitoring Station ( CMS ) and to the mean averages generated by the Urban Air Toxics Monitoring Program ( UATMP ). DO 1 OFNT T Al C.ONFt ( TABLE 1 ) CAPITOL SITE CONTINUOUS MONITORING STATION SUMMARY OF DESCRIPTIVE STATISTICS (Concentrations in Parts per billion by volume) HYDROCARBONS CompoundMean Avg. StDev, Minimum Propane Butane Pentane Hexane Benzene Toluene Ethylbenzene o-xylene Unknowns Tot. Hydrocarbons 5.93 6.12 3.46 1.46 2.88 2.10 0.43 0.96 20.22 43jp 22.37 15.65 10.15 5.63 8.30 4.44 1.08 2.22 40.34 87.55 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Median 2.5 2.8 1.9 0.8 2.0 1.3 0.2 0.4 12.5 29.0 Maximum 1109.3 552.2 511.1 323.1 468.2 147.6 28.8 55.3 1240.3 3031.1 CHLORINATED HYDROCARBONS Compound Mean Avo. Vinyl Chloride 0.68 Methylene Chloride 0.12 1,1-dichloroethene 0.11 Chloroform 0.08. Ethylene dichloride 0.53 Carbon tetrachloride 0.05 Trichloroethylene 0.01 Perchloroethylene 0.02 Unknowns 1.26 Tot. Cl. Hydrocarbons v2.86 StDev. 3.16 0.87 1.06 0.79 2.96 0.35 0.09 0.13 4.52 8.12 o o Minimum 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Median 0.3 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.5 1.2 Maximum 132.1 32.9 48.8 33.7 70.7 27.3 3.9 3.9 160.3 208.9 DO 128537 rONFTDFNTTAl ( TABLE 2 ) MONTHLY AVERAGE CONCENTRATIONS (Parts Per Billion by Volume) Compound # of Samples - FID Propane Butane Pentane Hexane Benzene Toluene Ethylbenzene o-xylene Jan. Feb. March April Mav June 556 520 561 348 475 527 12.0 11.1 8.7 9.8 6.8 13.4 16.0 13.0 8.6 10.0 3.5 4.0 3.2 4.7 2.1 2.3 1.6 2.5 1.5 3.2 1.1 1.2 0.8 1.1 5.0 6.5 3.4 3.2 3.0 3.7 2.7 2.9 1.2 1.8 1.7 1.4 0.6 0.6 0.3 0.2 0.5 0.2 1.6 0.8 0.5 0.5 1.1 0.8 # of Samples - ELCD 554 564 397 312 428 496 Vinyl chloride 0.6 0.7 1.1 1.3 0.4 0.8 Methylene chloride 0.1 0.0 0.1 0.1 0.3 0.2 1,1-dichloroethene 0.0 0.0 0.1 0.8 0.0 0.2 Chloroform 0.0 0.0 0.3 0.1 0.2 0.0 Ethylene dichloride 0.3 0.6 0.5 0.4 0.7 0.5 Carbon tetrachloride 0.0 0.0 0.2 0.1 0.1 0.0 Trichloroethylene 0.0 0.0 0.0 0.0 0.0 0.0 Perchloroethylene 0.0 0.0 0.1 0.0 0.0 0.0 Compound # of Samples - FID Propane Butane Pentane Hexane Benzene Toluene Ethylbenzene o-xylene # of Samples - ELCD Vinyl chloride Methylene chloride 1,1-dichloroethene Chloroform Ethylene dichlorlde Carbon tetrachloride Trichloroethylene Perchloroethylene Julv 333 6.1 2.2 2.4 1.1 2.6 1.4 0.2 0.6 269 0.7 0.1 0.0 0.1 0.2 0.0 0.0 0.0 Auq. 568 - 1.6 5.9 1.7 1.7 2.5 0.8 0.8 Sept. 601 - 2.4 4.0 1.4 1.4 2.1 0.5 0.9 00 ------- -- -- Oct. 608 - 3.8 5.1 1.6 1.9 2.7 0.4 1.4 0 - - - - - - Nov. 592 - 3.3 4.0 1.7 1.8 3.0 0.5 1.7 Dec. 532 5.5 5.6 2.3 1.1 1.0 1.3 0.3 0.6 27 388 0.3 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.2 1.0 0.1 0.0 0.0 0.0 0.1 0.0 DO 128538 CONFTOFNTTAL ( FIGURE 1 ) Capitol Site Hydrocarbons Wind Sector Analysis . Cone. PPBV 70 r----------------------- A60 50 'A' A\\40 30 VV >- - 20 to (--I--k +--K-t--I- 4-4- 4-1I 0 0 50 100 4--K 4*- -l-f-4- 4- 4" *'-4 -1- 4- 4- 4-t 4+~l - +" _____L. 150 200 250 300 350 Wind Direction ( Degrees ) DO 1 ? 8 5 3 9 GONF TDFNT TA Total Hydrocarbons Aromatics * Aliphaties 1989 Monitoring Data ( TABLE 3 ) DIURNAL ANALYSIS (Parts Per Billion by Volume) Propane Butane Pentane Hexane Benzene Toluene Ethylbenzene o-xylene vinyl chloride Methylene chloride 1,1-dichloroethene Chloroform Ethylene dichloride Carbon tetrachloride Trichloroethylene Perchloroethylene Hour of the Day 0 1 2 3 4 5 ,6 7 7.0 8.3 7.6 6.6 7.3 7.6 6.9 7.9 6.2 8.8 6.5 6.5 6.4 6.6 7.6 8.6 3.2 4.3 3.7 3.0 3.2 3.2 4.2 4.4 1.6 1.7 1.6 1.3 1.4 1.3 1.6 1.9 2.9 3.0 2.7 2.6 2.8 2.9 3.2 3.8 2.2 2.3 2.1 1.7 1.7 1.9 2.5 3.0 0.4 0.4 0.4 0.3 0.3 0.3 0.5 0.5 1.0 1.1 0.8 0.8 0.7 0.7 1.1 1.4 VO o 0.7 0.6 0.7 0.6 0.6 0.8 0.7 0.2 0.1 0.1 0.1 0.1 0.0 0.0 0.2 0.1 0.2 0.1 0.1 0.1 0.1 d.i 0.1 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.1 0.4 0.5 0.9 0.6 0.4 0.4 0.5 0.4 0.0 0.0 0.0 0.0 0.0 0.2 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Propane Butane Pentane Hexane Benzene Toluene Ethylbenzene o-xylene Vinyl chloride Methylene chloride 1,1-dichloroethene Chloroform Ethylene dichloride Carbon tetrachloride Trichloroethylene Perchloroethylene 8 9 10 11 12 13 14 15 6.1 5.8 4.2 1.1 0.7 2.6 3.4 3.6 5.8 5.5 5.6 2.5 1.6 2.0 5.4 4.6 3.6 3.6 2.8 3.6 2.9 2.7 2.6 2.2 1.3 1.2 1.0 1.0 0.9 0.9 1.2 1.0 3.1 2.9 2.2 1.1 0.9 1.3 2.5 2.2 2.4 2.0 1.4 1.3 1.3 1.4 1.9 1.5 0.4 0.3 0.2 0.2 0.2 0.6 1.1 0.3 1.0 0.8 0.6 0.5 0.6 0.9 1.1 0.7 1.2 0.8 0.4 0.2 0.1 0.6 0.7 0.7 0.1 0.1 0.1 0.0 0.0 0.9 0.4 0.1 0.4 0.1 0.1 0.0 0.0 0.1 0.1 0.1 0.2 0.1 0.1 0.1 0.0 0.0 0.1 0.0 0.8 0.4 0.6 0.1 0.5 0.1 0.4 0.2 0.0 0.0 0.1 0.0 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.1 0.1 0.0 0.0 0.0 DO 1PBBA0 CONFTOFNTTAl ( TABLE 3 Cont.) Propane Butane Pentane Hexane Benzene Toluene Ethylbenzene o-xylene Vinyl chloride Methylene chloride 1, 1-dichloroethene Chloroform Ethylene dichloride Carbon tetrachloride Trichloroethylene Perchloroethylene o o 16 17 18 19 20 21 22 23 3.7 4.1 7.9 8.3 5.9 5.3 6.0 6.6 4.2 5.2 7.9 7.0 6.8 6.4 6.1 6.4 2.1 2.4 3.8 3.8 4.0 5.3 4.0 3.7 0.8 0.9 1.9 1.7 2.0 2.5 1.7 1.7 2.2 2.2 3.4 3.4 3.8 4.4 3.2 3.2 1.5 1.5 2.2 2.4 3.0 2.9 2.6 2.4 0.3 0.3 0.5 0.5 0.5 0.5 0.5 0.4 0.7 0.8 1.1 1.1 1.3 1.4 1.2 1.0 0.4 0.7 0.5 0.5 0.6 1.3 0.7 0.6 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.0 0.0 0.0 0.3 0.1 0.1 0.1 0.0 0.2 0.3 0.9 0.4 0.8 0.7 0.8 0.7 0.0 0.0 0.0 0.2 0.1 0.0 0.1 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 128541 OONF TDFNT TAl ( TABLE 4 ) CAPITOL SITE CONTINUOUS MONITORING STATION Variation in Concentration by the Day of the Week (Concentrations in Parts per billion by volume) Comoound Propane Butane Pentane Hexane Benzene Toluene Ethylbenzene o-xylene THC Sun 5.4 5.2 2.8 1.2 2.4 1.9 0.4 0.8 36.4 Mon 7.0 6.5 3.3 1.4 2.9 2.1 0.5 0.9 43.7 Tue 6.3 7.5 4.4 1.4 2.8 2.1 0.4 1.0 49.6 Wed 5.0 5.4 3.0 1.3 2.6 1.9 0.4 0.9 39.2 Thur 5.6 5.9 3.1 1.4 2.8 2.0 0.4 0.9 41.5 Fri 6.3 6.5 3.2 1.2 2.7 2.2 0.4 1.0 43.0 sa-t 6.0 5.7 4.3 2.2 3.9 2.5 0.5 1.1 49.5 Comoound Sun Mon Tue Wed Thur Fri Vinyl Chloride 0.6 0.7 0.9 0.5 0.9 0.6 0.6 Meth'ene Chloride 0.1 0.1 0.1 0.1 . 0.1 0.2 0.1 1,1-dich'ene 0.1 0.3 0.1 0.0 0.0 0.1 0.1 Chloroform 0.0 0.1 0.1 0.0 0.1 0.0 0.2 EDC 0.7 0.6 0.6 0.3 0.4 0.5 0.5 Carbon Tet. 0.0 0.0 0.1 0.0 0.1 0.0 0.1 Trichloroethylene 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Perchloroethylene 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Tot. Cl. HC 2.6 3.3 3.6 2.0 2.7 2.8 2.9 r>0 1P854? UONFTDFNTTAI ( TABLE 5 ) COMPARISON OF TAMS DATA BY SITE MEAN AVERAGE CONCENTRATIONS - 10 HOUR SAMPLES Compound Acrylonitrile Allyl Chloride Chloroform 1,2-dichloroethane Methyl Chloroform Benzene Carbon Tet. 1,2-dichioroprop. Trichloroethylene 1-Heptene n-Heptane Toluene 1,3-dichloroprop. Ethylene Dibromide Perchloroethylene Chlorobenzene Ethylbenzene m-Xylene p-Xylene Bromoform o-Xylene Cumene Bromobenzene BAKER 0.01 0.00 0.22 0.17 0.27 4.05 0.12 <0.01 0.02 0.34 0.76 3.27 <0.01 0.00 0.03 0.02 0.28 1.15 0.26 0.00 .0.35 0.04 0.00 CAPITOL 0.02 0.00 0.14 0.51 0.37 1.84 0.15 <0.01 0.02 0.30 0.48 2.37 <0.01 0.00 0.12 0.01 0.38 1.01 0.33 0.00 0.48 0.04 0.00 PORT ALLEN GEISMAR 0.01 0.00 0.00 0.00 0.14 0.01 1.58 0.36 0.30 0.79 1.81 4.62 0.16 0.16 <0.01 <0.01 0.02 0.03 0.35 0.10 0.78 0.19 2.56 1.95 <0.01 <0.01 0.00 0.00 0.08 . 0.05 0.01 0.06 0.28 1.62 0.78 0.36 0.19 0.10 0.00 0.00 0.33 0.17 0.05 0.02 0.00 0.00 DO 1?B543 CONFTDFNTTAl ( TABLE 6 ) Volatile Organic Compounds Often Identified in the Baton Rouge Ambient Air by GC/MS Qualitative Analysis n-butane 1-butene 1,3-butadiene n-pentane 2.2-dimethylbutane 3-methyl-1-butene 1-pentene 2,3-dimethylbutane isoprene 2-methylpentane n-hexane 2-pentene 1.3-pentadiene methylcyclopentane cyclohexane cyclohexene 2-hexene methylcyclopentane 2-4-dimethylpentane 2-methylhexane alpha-pinene beta-pinene 2,2,2-trimethylpentane 2,5-dimethylhexane 2,3,4-trimethylpentane 2-methylheptane n-octane 2-methyloctane n-decane n-undecane ethylcyclopentane dimethylcyclopentane acetone 2-butanone Freon -113 styrene 3-ethyltoluene 4-ethyltoluene 2-ethyltoluene 1,2,4-trimethylbenzene n-butylbenzene p-cymene vinyl chloride methylene chloride 2-methylbutane 2-butene cyclopentane 2-methyl-l-butene 3-methylpentane 2-methy1-2-butene cyclopentene 1-hexene methylcyclohexane 3-methylhexane limonene 2.4-dimethylhexane 3-methylheptane 3-methyloctane n-dodecane dimethylcyclohexane Freon -11 n-propylbenzene 1,3,5-trimethylbenzene 1/2,3-trimethylbenzene methyl chloride 1.4-dichlorobenzene 00 1?8544 OONF IDFNT TAI ( TABLE 7 ) CAPITOL SITE DATA COMPARISON TAMS Samples - Continuous Monitoring System - UATMP Samples 1989 DATA - MEAN AVERAGES FOR ALL SAMPLES Compound TAMS DATA * 6-10 0-10 Chloroform 0.12 0.14 EDC 0.33 0.51 Carbon tetrachloride 0.13 0.15 Trichloroethylene 0.02 0.02 Perchloroethylene 0.22 0.12 Benzene 1.88 1.84 Toluene 2.51 2.37 Ethyl Benzene 0.39 0.38 m+p xylene 1.48 1.34 o xylene 0.50 0.48 * ffl-orv S fftot-v TA<bU2 \ ** CMS 0.08 0.53 0.05 0.01 0.02 2.88 2.10 0.43 - 0.96 UATMP 0.11 - 0.20 0.03 0.09 1.62 1.88 0.41 1.88 0.64 D0 1?854B CONFTDFNTT APPENDIX DO 1P8548 CONFTDFNTTAI, BAKER SITE TAMS DATA 4 HOUR SAMPLES (6-10 am) -19 Sampling Dates Compound Mean Acrylonitrile <0.01 Allyl Chloride 0.00 Chloroform 0.04 1,2-dichloroethane 0.10 Methyl Chloroform 0.16 Benzene 2.24 Carbon Tet . 0.08 1,2-dichloroprop. <0.01 Trichloroethylene <0.01 1-Heptene 0.17 n-Heptane 0.42 Toluene 1.98 1,3-dichloroprop. 0.00 Ethylene Dibromide 0.00 Perchloroethylene 0.02 Chlorobenzene 0.01 Ethylbenzene 0.16 m-Xylene 0.71 p-Xylene 0.18 Bromoform 0.00 o-Xylene 0.24 Cumene 0.02 Bromobenzene 0.00 Std. Dev 0.02 0.00 0.03 0.16 0.11 2.47 0.07 0.01 0.03 0.26 0.57 2.42 0.00 0.00 0.03 0.02 0.16 1.00 0.26 0.00 0.29 0.02 0.00 Minimum 0.00 0.00 0.00 0.00 0.00 0.33 0.00 0.00 0.00 0.00 0.00 0.25 0.00 0.00 0.00 0.00 0.02 0.07 0.00 0.00 0.00 0.00 0.00 Median 0.00 0.00 0.03 0.03 0.14 1.63 0.09 0.00 0.01 0.13 0.25 1.31 0.00 0.00 0.01 0.01 0.10 0.37 0.10 0.00 0.14 0.01 0.00 10 HOUR SAMPLES ( 0 - 10 am ) - 21 Sampling Dates Compound Mean Acrylonitrile 0.01 Allyl Chloride 0.00 Chloroform 0.22 1,2-dichloroethane 0.17 Methyl Chloroform 0.27 Benzene 4.05 Carbon Tet. 0.12 1,2-dichloroprop. <0.01 Trichloroethylene 0.02 1-Heptene 0.34 n-Heptane 0.76 Toluene 3.27 1,3-dichloroprop. <0.01 Ethylene Dibromide 0.00 Perchloroethylene 0.03 Chlorobenzene 0.02 Ethylbenzene 0.28 m-Xylene 1.15 p-Xylene 0.26 Bromoform 0.00 o-Xylene 0.35 Cumene 0.04 Bromobenzene 0.00 Std. Dev 0.04 0.00 0.76 0.62 0.17 3.77 0.05 0.01 0.02 0.42 0.82 2.96 0.02 0.00 0.03 0.02 0.30 1.37 0.27 0.00 0.37 0.05 0.00 Minimum 0.00 0.00 0.00 0.00 0.05 0.26 0.03 0.00 0.00 0.00 0.00 0.21 0.00 0.00 0.00 0.00 0.02 0.06 0.01 0.00 0.02 0.00 0.00 Median 0.00 0.00 0.04 0.20 0.23 3.36 0.12 0.00 . 0.01 0.16 0.37 2.45 0.00 0.00 0.03 0.01 0.16 0.73 0.14 0.00 0.26 0.02 0.00 Maximum 0.08 0.00 0.10 0.59 0.37 11.59 0.25 0.03 0.12 1.06 2.50 11.08 0.00 0.00 0.10 0.07 0.69 4.51 1.13 0.00 1.26 0.08 0.00 Maximum 0.15 0.00 3.54 0.59 0.62 16.23 0.22 0.05 0.09 1.41 2.65 11.70 0.09 0.00 . 0.12 0.05 1.22 5.80 0.87 0.00 1.43 0.22 0.00 DO 178547 OONFTDFNTTAI CAPITAL SITE TAMS DATA 4 HOUR SAMPLES ( 6 - 10 am ) - 23 Sampling Dates Compound Mean Acrylonitrile 0.02 Allyl Chloride 0.00 Chloroform 0.12 1,2-dichloroethane 0.33 Methyl Chloroform 0.30 Benzene 1.88 Carbon Tet. 0.13 1,2-dichloroprop. <0.01 Trichloroethylene 0.02 1-Heptene 0.26 n-Heptane 0.50 Toluene 2.51 1,3-dichloroprop. <0.01 Ethylene Dibromide 0.00 Perchloroethylene 0.22 Chlorobenzene 0.01 Ethylbenzene 0.39 m-Xylene 1.13 p-Xylene 0.35 Bromoform 0.00 o-Xylene 0.50 Cumene 0.05 Bromobenzene 0.00 Std. Dev 0.07 0.00 0.35 0.88 0.17 1.92 0.08 0.01 0.02 0.43 0.50 2.82 0.01 0.00 0.45 0.02 0.62 1.76 0.59 0.00 0.85 0.10 0.00 Minimum 0.00 0.00 0.00 0.00 0.10 0.35 0.00 0.00 0.00 0.00 0.13 0.42 0.00 0.00 0.00 0.00 0.06 0.14 0.00 0.00 0.04 0.00 0.00 Median 0.00 0.00 0.03 0.05 0.27 1.34 0.11 0.00 0.01 0.10 0.37 1.78 0.00 0.00 0.10 0.01 0.27 0.74 0.23 0.00 0.33 0.02 0.00 10 HOUR SAMPLES ( Ci - 10 am ) - 24 Sampling Dates Compound Mean Acrylonitrile <0.01 Allyl Chloride 0.00 Chloroform 0.14 1,2-dichloroethane 0.51 Methyl Chloroform 0.37 Benzene 1.84 Carbon Tet. 0.15 1,2-dichloroprop, <0.01 Trichloroethylene 0.02 1-Heptene 0.30 n-Heptane 0.48 Toluene 2.37 1,3-dichloroprop. <0.01 Ethylene Dibromide 0.00 Perchloroethylene 0.12 Chlorobenzene 0.01 Ethylbenzene 0.38 m-Xylene 1.01 p-Xylene 0.33 Bromoform 0.00 o-Xylene 0.48 Cumene 0.04 Bromobenzene 0.00 Std. Dev 0.03 0.00 0.31 0.95 0.33 1.77 0.12 0.01 0.02 0.44 0.45 2.70 0.01 0.00 0.21 0.02 0.53 1.48 0.48 0.00 0.73 0.05 0.00 Minimum 0.00 0.00 0.00 0.00 0.12 0.29 0.07 0.00 0.00 0.00 0.11 0.29 0.00 0.00 0.00 0.00 0.04 0.01 0.03 0.00 0.06 0.00 0.00 Median 0.00 0.00 0.04 0.11 0.29 1.29 0.11 0.00 0.02 0.14 0.31 1.33 0.00 0.00 0.06 0.00 0.22 0.53 0.20 0.00 0.25 0.02 0.00 Maximum 0.31 0.00 1.69 4.21 0.87 9.44 0.42 0.07 0.06 1.93 1.96 14.08 0.03 0.00 2.24 0.06 3.20 8.98 2.99 0.00 4.34 0.45 0.00 Maximum 0.14 0.00 1.53 3.86 1.64 7.50 0.68 0.07 0.10 1.67 1.65 11.62 0.02 0.00 1.08 0.08 2.47 6.27 2.18 0.00 3.02 0.24 0.00 00 12B548 OONF TDFNTTAl GEISMAR SITE TAMS DATA 4 HOUR SAMPLES (6-10 am) -10 Sampling Dates Compound Acrylonitrile Allyl Chloride Chloroform 1,2-dichloroethane Methyl Chloroform Benzene Carbon Tet. 1,2-dichloroprop. Trichloroethylene 1-Heptene n-Heptane Toluene 1,3-dichloroprop. Ethylene Dibromide Perchloroethylene Chlorobenzene Ethylbenzene m-Xylene p-Xylene Bromoform o-Xylene Cumene Bromobenzene Mean 0.00 0.00 0.13 0.42 0.69 3.15 0.20 0.03 0.02 0.15 0.19 1.98 0.01 0.00 0.06 0.08 0.30 0.37 0.11 0.00 0.17 0.03 0.00 Std. Dev . 0.00 0.00 0.21 0.74 1.05 3.26 0.16 0.08 0.03 0.14 0.14 1.89 0.00 0.00 0.08 0.21 0.31 0.30 0.11 0.00 0.16 0.03 0.00 Minimum 0.00 0.00 0.00 0.00 0.00 0.71 0.07 0.00 0.00 0.00 0.02 0.35 0.00 0.00 0.00 0.00 0.07 0.09 0.02 0.00 0.04 0.00 0.00 Median 0.00 0.00 0.05 0.10 0.25 2.02 0.11 0.00 0.01 0.11 0.16 1.27 0.00 0.00 0.02 0.01 0.20 0.24 0.08 0.00 0.10 0.01 0.00 10 HOUR SAMPLES ( 0 - 10 am ) - 10 Sampling Dates Compound Mean Acrylonitrile 0.00 Allyl Chloride 0.00 Chloroform 0.10 1,2-dichloroethane 0.36 Methyl Chloroform 0.79 Benzene 4.62 Carbon Tet. 0.16 1,2-dichloroprop. <0.01 Trichloroethylene 0.03 1-Heptene 0.10 n-Heptane 0.19 Toluene 1.95 1, 3-dichloroprop. <0.01 Ethylene Dibromide 0.00 Perchloroethylene 0.05 Chlorobenzene 0.06 Ethylbenzene 1.62 m-Xylene 0.36 p-Xylene 0.10 Bromoform 0.00 o-Xylene 0.17 Cumene 0.02 Bromobenzene 0.00 Std. Dev . 0.00 0.00 0.06 0.48 1.52 8.01 0.08 0.03 0.04 0.10 0.14 1.66 0.01 0.00 0.05 0.11 2.69 0.33 0.11 0.00 0.17 0.02 0.00 Minimum 0.00 0.00 0.03 0.01 0.00 0.86 0.08 0.00 0.00 0.00 0.04 0.38 0.00 0.00 0.00 0.00 0.06 0.00 0.02 0.00 0.04 0.00 0.00 Median 0.00 0.00 0.08 0.11 0.36 1.80 0.14 0.00 0.01 0.07 0.14 1.55 0.00 0.00 0.03 0.01 0.31 0.17 0.05 0.00 0.08 0.01 0.00 Maximum 0.00 0.00 0.70 2.37 3.53 11.50 0.54 0.27 0.08 0.83 0.47 5.88 0.00 0.00 0.22 0.69 1.10 1.04 0.35 0.00 0.52 0.09 0.00 Maximum 0.00 0.00 0.24 1.53 5.10 26.84 0.35 0.09 0.11 0.29 0.43 5.44 0.02 0.00 0.15 0.32 8.07 0.92 0.31 0.00 0.52 0.06 0.00 no 1?8549 CONF TDFNTTAt PORT ALLEN SITE TAMS DATA 10 HOUR SAMPLES (0-10 am) -23 Sampling Dates Compound Mean Acrylonitrile 0.01 Allyl Chloride 0.00 Chloroform 0.14 1,2-dichloroethane 1.58 Methyl Chloroform 0.30 Benzene 1.81 Carbon Tet. 0.16 1,2-dichloroprop. <0.01 Trichloroethylene 0.02 1-Heptene 0.35 n-Heptane 0.78 Toluene 2.56 1,3-dichloroprop. <0.01 Ethylene Dibromide 0.00 Perchloroethylene 0.08 Chlorobenzene 0.01 Ethylbenzene 0.28 m-Xylene 0.78 p-Xylene 0.19 Bromoform 0.00 o-Xylene 0.33 Cumene 0.05 Bromobenzene 0.00 Std. Dev. 0.04 0.00 0.18 2.91 0.19 1.10 0.08 0.01 0.03 0.35 0.60 2.11 0.01 0.00 0.07 0.02 0.26 0.72 0.17 0.00 0.32 0.05 0.00 Minimum 0.00 0.00 0.01 0.00 0.00 0.52 0.09 0.00 0.00 0.01 0.12 0.55 0.00 0.00 0.00 0.00 0.07 0.18 0.00 0.00 0.00 0.01 0.00 Median 0.00 0.00 0.07 0.62 0.24 1.39 0.14 0.00 0.01 0.20 0.73 1.59 0.00 0.00 0.05 0.01 0.17 0.49 0.14 0.00 0.21 0.03 0.00 Maximum 0.19 0.00 0.69 13.11 0.84 4.55 0.44 0.07 0.14 1.12 2.19 7.94 0.02 0.00 0.23 0.08 1.20 3.27 0.77 0.00 1.52 0.18 0.00 DO 128550 GONF TDFNT T Al ALL SITES COMBINED TAMS DATA 6-10 Sample Time ( 52 Samples ) Compound Mean Acrylonitrile 0.01 Allyl Chloride 0.00 Chloroform 0.09 1,2-dichloroethane 0.26 Methyl Chloroform 0.33 Benzene 2.26 Carbon Tet. 0.13 1,2-dichloroprop. 0.01 Trichloroethylene 0.02 1-Heptene 0.21 n-Heptane 0.41 Toluene 2.22 1,3-dichloroprop. <0.01 Ethylene Dibromide 0.00 Perchloroethylene 0.11 Chlorobenzene 0.03 Ethylbenzene 0.29 m-Xylene 0.83 p-Xylene 0.24 Bromoform 0.00 o-Xylene 0.34 Cumene 0.03 Bromobenzene 0.00 Maximum 0 .31 0 .00 1 .69 4 .21 3 .53 11 .59 0 .54 0 .27 0 .12 1 .93 2 .50 14 .08 0 .03 0 .00 2 .24 0 .69 3 .20 8 .98 2 .99 0 .00 4 .34 0 .45 0 .00 0-10 Sample Time ( 78 Samples ) Mean 0.01 0.00 0.15 0.72 0.38 2.78 0.15 0.01 0.02 0.30 0.31 2.62 <0.00 0.00 0.08 0.02 0.48 0.90 0.24 0.00 0.36 0.04 0.00 Maximum 0.19 0.00 3.54 13.11 5.10 26.84 0.68 0.09 0.14 1.67 2.65 11.70 0.09 0.00 1.08 0.32 8.07 6.27 2.18 0.00 3.02 0.24 0.00 on OQ/vp 1 s'ftSS 1 tvfnttai Capitol Site Monitoring Data Total Hydrocarbons & Total Cl VOC '5n r 100 T H C P P B V Q1 Q2 Q3 04 Q1 Q2 Q3 04 Q1 Q2 Q3 04 Q1 Q2 Q3 Q4 I 86 I 87 I 88 I 89 I Quarterly Data ooz Oo Cl. VOC ES3 THC oTl \3>> Z LH Mean Average Concentration n \) 3> Day of the Week Analysis Total Hydrocarbons . THC in PPBV 49.6 49.5 DO 1 3 8 5 5 3 OONFTDFNTr SUN MON 1989 Monitoring Data TUE WED THU FRI Day of the Week SAT WKDAY WKEND i> Day of the Week Analysis Total Cl. VOC Cl. VOC in PPBV nO 1? 8 5 5 4 CONFTDFNTT -----1------ ------------ |-----| SUN MON TUE 1989 Monitoring Data I Ii WED THU FRI Day of the Week i rI SAT WKDAY WKEND CAPITOL SITE HYDROCARBONS WEEKDAY vs WEEKEND DIURNAL ANALYSIS T O T A L H Y D R O C A R B O N S P P B V no 1?fi555 OONFTDFNTTA DIURNAL AVERAGE CONCENTRATIONS DATA FROM: 1/01/89 TO 12/31/89