This study uses structural equation models to describe how objective neighb
orhood, perceived neighborhood and environmental support predict mental hea
lth; 792 adolescents responded to highly structured interviews. The effect
of objective environment on mental health was mediated through its influenc
e on perceived neighborhood. Environmental support mitigated negative perce
ptions of environment and the Effect of perceived environment on mental hea
lth, while exposure to violence augmented the negative effect of perceived
environment.