write:3 4 0 s e e A c t i v a t e d c a r b o n ; W a t e r v a p o r S o u n d e n e r g y 3 9 5 ⠀ “ 3 9 8 f r e q u e n c y 3 9 8 i m p u l s e 4 0 1 i n

340
see Activated carbon; Water vapor Sound energy 395–398 frequency 398 impulse 401 intensity 396–397 level A-weighted 402
411 A-weighted
exposure 402 day-night 404
412–413 equivalent 403–404
412–413 measurement 398–402 power 396 pressure 397–398 Source management
indoors 385–386 removal 386 treatment 385 Sources indirect 27 mobile 27 stationary 27 transportation 27 Spark timing 303–304 Spatial scales 229–230 Spectrometry non-dispersive infra-red 233–234 ultraviolet 234 Spectrum analysis
sound 401–402 Speech communication
interference by noise 409–411 Spray towers 335 Stability atmospheric 75
321 classes 90
247
249 neutral 75 Stachybotrys chartarum 379 Stack height effective 82–83
251 physical 82
249 Stack sampling 240–242 Stacks
tall 321–322 Standard achievement of ozone 316 deviation 227
246–247 Standards & Technology
National Institute of (NIST) 229 Index 500