In recent years, people’s rising concerns and awareness on the environment has made the utility of NGIS, service oriented architecture(SOA), RIA technology for Web geographic information system(GIS) development, and smart mobile device to facilitate the delivery of spatial environmental information become necessity. Therefore, by the project building wants to achieve the following goals: （一）The project utilizes the latest GIS technology to rebuild the Home-living environmental information system. The overall system performance is greatly improved by using technology such as map cache and RIA. Through interfacing with EPA's internal and external systems via web services, more housing related spatial and aspatial information is converge into the system and augment the value and variety of the data the system provided by the system. Information including quality of air, water, waste, soil and ground water, environmental agents, and so forth are provided and displayed integrally on the same GIS platform. （二）The system also provides a wide varieties of the spatial queries to to provide better usability and service quality. Additionally, by incorporating Oauth account login, the system is able to link social media, such as facebook and google+, to promote and share the environmental information to greater public through community sharing and public cloud. （三）The extension referral that internal and external data exchange with map data publishing services, environment required to effectively converge the value of spatial analysis and environmental monitoring. （四）Additionally, the project also extend some of the functionality to cover both Android and iOS mobile users. The App, called Instant Environmental Messenger, integrates GPS technology onboard the mobile device to provide the App users with near real time, location based service (LBS) environmental information. The messaging technology is also employed to push subscribed information based on the location of the device (LBS) from EPA server to deliver near real time environmental warning message to the users.

Home-living environmental information system;Real-time environmental information;Environmental GIS