... Faith, W.L. and A.A. Atkisson, Air Pollution, 2nd Ed., Wiley-Interscience, New York, 1972. Ferrand, E.F., Effects of Air Pollutants, The Encyclopedia of Environmental Science and Engineering, ... Blue Men, Little, Brown and Co., New York, 1953. Salvato, J., Environmental Health, The Encyclopedia of Environmental Sci-ence and Engineering, 4th Ed., Gordon and Breach Science Publishers, N.Y., ... tightening of the neck and face mus-cles, at times accompanied by nausea, headache, and gid-diness. Some countries have placed limits on the amount of MSG in foods and require that the presence of...