\begin{center}
{\bf REFERENCES}
\end{center}
\begin{list}{\leftmargin 0.3in
\labelsep 0.1in \itemsep 0.01in}
\item Amdahl,~G.~M., Validity of the single processor approach to
achieving large scale computer capabilities, in {\sl Proceedings of
AFIPS Spring Joint Computer Conf.}, 483-485, AFIPS Press, Reston, VA, 1967.
\item Beguelin,~A, J.~Dongarra, A.~Geist, R.~Manchek, and V.~Sunderam,
A users's guide to PVM Parallel Virtual Machine, {\sl Rep.
DE-AC-05-84OR21400}, Oak Ridge National Lab., Oak Ridge, TN, 1992.
\item Chang,~J.~S., R.~A.~Brost, I.~S.~A.~Isaksen, S.~Madronich,
P.~Middleton, W.~R.~Stockwell, and C.~J.~Walcek, A
three-dimensional eulerian acid deposition model: Physical concepts
and formulation, {\sl J. Geophys. Res, 92}, 14,681-14,700, 1987.
\item Carmichael,G.~R., L.~K.~Peters and R.~D.~Saylor, The STEM-II
regional-scale acid deposition and photochemical model - I. An
overview of model development and applications, {\sl Atmos. Environ.,
25A}, 2077-2090, 1991.
\item Dabdub,~D., and J.~H.~Seinfeld, Air Quality modeling on
massively parallel computers, {\sl Atmos. Environ., 28}, 1679-1687, 1994.
\item Geist,~G.~A., and V.~S.~Sunderam, The PVM system: Supercomputer
level concurrent computation on a heterogeneous network of
workstations, in {\sl Proceedings of the sixth Distributed Memory
Computing Conference}, 258-261, IEEE, 1991.
\item Hansen,~D.~A., R.~L.~Dennis, A.~Ebel, S.~R.~Hanna, J.~Kaye, and
R.~Thuillier, The quest for an advanced regional air quality model,
{\sl Environ. Sci. Technol., 28}, 71a-77a, 1994.
\item Kumar,~N., M.~T.~Odman, and A.~G.~Russell, Multiscale air quality
modeling: Application to southern California,
{\sl J. Geophys. Res., 99}, 5385-5397, 1994.
\item Kumar,~N., and A.~G.~Russell, Multiscale air quality modeling of
the Northeastern United States, accepted, 1995a.
\item Kumar,~N., and A.~G.~Russell, Development of a computationally
efficient, reactive sub-grid scale plume model and the impact in the
Northeastern United States using increasing levels of chemical detail,
submitted, 1995b.
\item Lamb,~R.~G., Numerical simulations of photochemical air
pollution in the northeastern United States: ROM1 applications,
{\sl Rep. EPA-600/3-86-038}, Environ. Prot. Agency, Research Triangle
Park, N.~C., 1986.
\item McRae,~G.~J., W.~R.~Goodin, and J.~H.~Seinfeld,
Development of a second generation mathematical model for urban air
pollution, I, Model formulation, {\sl Atmos. Environ.,
16}, 679-696, 1982.
\item Morris,~R.~E., T.~C.~Myers, M.~C.~Causley, L.~Gardner, and
E.~L.~Carr, Urban Airshed Model study of five cities, {\sl Rep.
SYSAPP-89/117}, Systems Applications Inc., San Rafael, CA, 1989.
\item Odman,~M.~T. and A.~G.~Russell, A multiscale finite
element pollutant transport scheme for  urban and  regional
modeling, {\sl Atmos. Environ., 25A}, 2385-2394, 1991.
\item Saylor,~R.~D. and R.~I.~Fernandes, On the parallelization
of a comprehensive regional-scale air quality model,
{\sl Atmos. Environ., 27A}, 625-631, 1993.
\item Steenkiste,~P.~A., B.~D.~Zill, H.~T.~Kung, S.~J.~Schlick,
J.~Hughes, B.~Kowalski, and J. Mullaney, A Host Interface Architecture
for high-speed networks, Proceedings of the 4th IFIP conference on
high performance networks, IFIP, Liege, Belgium, A3, 1-16, 1992.
\item Yamartino,~R.~J., J.~S.~Scire, and S.~R.~Hana, The CALGRID
Mesoscale Photochemical Grid Model -I. Model Formulation, {\sl Atmos.
Environ., 26A}, 1493-1512, 1992.
\item Young,~T.~R., and J.~P.~Boris, A numerical technique
for solving ordinary differential equations associated with the
chemical kinetics of reactive flow problems,   {\sl J. Phys.
Chem., 81}, 2424-2427, 1977.
\end{list}