§ Mr. Nigel EvansTo ask the Secretary of State for the Environment what was the level of heavy metals in cemfuel when tested at Ribblesdale, Clithero, in October 1994. [32823]
Coal only November 1994 Substance Stack cone mg/m3 STP Stack cone mg/m3 actual Mass flow mg/s MGLC µ/m3 (x1000) EQS or EAL µ/m3 EQ (air) (x100) NOx 1216 665 119,737 836 83.3 1.0038 SO2 1274 697 125,448 876 80 1.0950 particulate 47 25.7 4,628 32 80 0.0404 HF 0.19 0.1 18.7 0.1306 6.5 0.002 HCl 76 41.6 7484 52.26 7 0.7466 CO 247 135.1 24322 169.8 550 0.0309 NH3 3.83 2.1 377 2.634 170 0.0015 Pb 0.221 0.12 21.8 0.152 2 0.0076 Cr(III) 0.085 0.047 8.37 0.0584 5 0.0012 Cr(VI) 0.000255 0.0001 0.02 0.0001 0.01 0.00010 Mn 0.018 0.01 1.76 0.0123 50 0.0000 Ni 0.038 0.02 3.74 0.0261 10 0.0003 EQ(air)x100 — — — — — 2.9293 EQ(air) — — — — — 0.0293
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Table 6.3: Cemfuelµ November 1994 Substance Stack cone mg/m3 STP Stack cone mg/m3 actual Mass flow mg/s MGLC µ/m3 (x1000) EQS or EAL µ/m3 EQ (air) (x100) NOx 1212 662 119,147 832 83.3 0.9988 SO2 1311 717 129,092 901 80 1.1269 particulate 72 39.4 7,090 50 80 0.0619 HF 0.15 0.082 14.8 0.1 6.5 0.0016 HCl 26 14.2 2,560 18 7 0.2554 CO 459 251.1 45,197 316 550 0.0574 NH3 6.7 3.7 660 4.6 170 0.0027 Pb 0.340 0.19 33.48 0.23 2 0.0117 Cr(III) 0.539 0.3 53.10 0.37 5 0.0074 Cr(IV) 0.0016 0.001 0.18 0.001 0.1 0.0010 Co 0.01 0.006 1.08 0.008 0.2 0.0040 Cu 0.008 0.004 0.72 0.005 2 0.0003 Mn 0.062 0.034 6.12 0.043 50 0.0001 Ni 0.348 0.19 34.2 0.24 10 0.0024
§ Mr. ClappisonThe concentrations of heavy metals in two samples taken during these trials are on the public register and were as follows.
Metal Sample M1348, mg/kg Sample 1349, mg/kg Cadmium 4.3 4.57 Thallium 0.05 0.05 Mercury 0.05 0.05 Antimony 20 16.7 Arsenic 1.02 0.05 Chromium 55 39 Cobalt 2.11 2.66 Copper 48 46 Lead 186 157 Manganese 28 18.2 Nickel 7.3 2.19 Tin 0.05 0.05 Vanadium 4.22 2.6
§ Mr. EvansTo ask the Secretary of State for the Environment what were the environmental values given to each of the individual emissions from burning cemfuel at Castle Cement, Clitheroe; and which increased as compared to burning coal. [32835]
§ Mr. ClappisonThe attached tables show the emissions when burning coal or coal plus cemfuel, the environmental assessment level values and the calculated environmental quotient.
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Table 6.3: Cemfuelµ November 1994 Substance Stack conc mg/m3 STP Stack cone mg/m3 actual Mass flow mg/s MGLC µ/m3 (x1000) EQS or EAL µ/m3 EQ (air) (x100) EQ(air)*100 — — — — — 2.5316 EQ(air) — — — — — 0.0253