2009g-322 [e] adverseeffects barnochnatur boats bodiesofwater business canada child childdevelopment childmentalhealth childrearing children children'shealth children'sstudies childrenandadults childwelfare cityplanning communitycenters communitydevelopment crowdingstressinchildren dd9668 dwellings développementdurable eaux economics education elementary enfants enfantsetenvironnement environment environmentalconservation environmentaleconomics environmentaleducation environmentalexposure environmentalhealth environmentalism environmentallaw environmentallyinduceddiseases environmentallyinduceddiseasesinchildren environmentalmonitoring environmentalpolicy environmentalpollutants environmentalpollution environmentalsciences environmentandeducation environnement évaluation facilitydesignandconstruction families family fiction fitness general governmentpolicy health healthandhygiene healthaspects healthriskassessment healthstatusindicators humanecology hygiènedumilieu imagination indicateursdesanté industrialtoxicology juvenilefiction kind lawandlegislation maladiesdel'environnementchezl'enfant medical natur nature natureandcivilization natureandnurture naturen nonfiction parentandchild parenting pediatrics picturebooks place-basededucation play playenvironments poisoning politicalscience politics politiquegouvernementale pollution populationdensity prenatalexposuredelayedeffects protection psychologicalaspects psychologicalaspectsofnature psychologie psychology psykologiskaaspekter publicpolicy relationships risquespourlasanté rivers santéethygiène sciencesdel'environnement ships shorelines socialaction socialenvironment socialinteractioninchildren socialization socialscience studyandteaching(elementary) surveillance sustainabledevelopment thenaturalworld transportation umwelt umwelterziehung underwatercraft unitedstates unitedstatesgovernmentagencies urban urbandevelopment urbanecology(biology) urbanecology(sociology) urbanparks wa670s524p2008 wa671s823m2008 ws105 étudeetenseignement(primaire)