Contribution of City Prosperity to Decisions on Healthy Building Design： A case study of Tehran

In this paper, the city prosperity manifest is analyzed through a logical process and a framework is then proposed for designing healthy buildings in Tehran. The current status of urbanization in terms of the number of people living together and the changes in old behavior and perspectives have resulted in deficiencies to the health and hygiene of buildings apart from their surrounding environment. Consequently, these problems have affected people＇s well-being. This study mainly aims to determine policies and strategies for the architectural design of healthy buildings according to health and safety conditions that influence the quality of internal spaces and external environment of cities. The study is conducted based on logical reasoning and uses focus group and in-depth interviews to assess the final result. The result is a framework that suggests a number of policies that can promote the mental and physical health as well as hygiene of residents through healthy buildings.

Building a healthy China by enhancing physical activity:Priorities,challenges,and strategies

Dear editor,In 2016,several landmark government initiatives were launched in an effort to build a more healthy China.In March,the National People’s Congress of China adopted the 13th FiveYear Plan,which sets out new objectives,principles,and targets for 2016–2020,1including action plans for enhancing environmental protection and green growth,promoting individual

Assessing the Role of Environmental Factors in the Transmission of Infectious Diseases in Communal Spaces

Communal spaces provide different facilities for users while they are the primary place for the spread of diseases,especially respiratory.Transmission is possible through human behaviors,the way they communicate with each other and breathe in an environment by airborne pathogenic particles.Experts from various fields have gained valuable experience and achievements regarding how to prevent these diseases by means of environmental factors.Due to the spread of the corona virus in the past years,environmental planners and designers seriously considered the need to review the design and use of spatial components.This study provides a framework for decision making and design of communal spaces based on how environmental components can be effective in preventing the spread of respiratory diseases such as coronavirus and influenza.The research method used in this article is logical reasoning combined with ANP method and focus group discussion.According to the results of this research,indoor air quality plays the most crucial role in preventing the transmission of viruses(contagious respiratory diseases)based on expert groups.

VINYL AND LINOLEUM FLOORING:HEALTH ISSUES AS PERCEIVED BY LAY PEOPLE AND ARCHITECTS

Recently more information has emerged on possible adverse health effects associ-ated with some building and furnishing materials,leading to or initiating legisla-tive changes towards their reduction or elimination in many parts of the world.However,more general knowledge of the health risks associated with building and furnishing materials could make a significant contribution to improvements in indoor air quality.A study was set up to evaluate the level of knowledge in the rel-evant literature and the general population(from New Zealand,United Kingdom and the United States),and New Zealand architectural professionals.The results for vinyl and linoleum are presented,these being two flooring materials very similar in terms of appearance and application,but different in terms of chemical content and possible impact on health.The article indicates significant issues with the level of reported knowledge,with participants from the general population struggling to differentiate between vinyl and linoleum,and professionals reporting more preva-lent use of vinyl,which they rate as less healthy.

多学科和多行业协同破解建筑室内空气质量难题

Healthy building is a new trend after green buildings in the world."WELL"was launched as the first guideline for healthy buildings in 2014 in USA.In 2017,China Healthy Building Assessment Standard was launched.Good indoor air quality is an important part for healthy buildings.The score of indoor air quality accounts for nearly 25 in the total score(100)in Healthy Building Assessment Standard(T/ASC 02-2016).The indoor air quality items in the standards are mainly based upon China Indoor Air Quality Standard(GB/T 18883-2001).However,the target indoor air pollutants in the both standards(T/ASC 02-2016 and GB/T 18883-2001)are not determined based upon the indoor air quality investigations in China.In order to revise the China Indoor Air Quality Standard(GB/T 18883-2001)and improve or develop the relevant indoor air quality control techniques,it’s necessary to know the important and unsolved problems in indoor air quality control in China.From them,the important scientific problems and key technical problems in China can be identified,and the gaps between the control demands and the levels of the related industries in China can be recognized.Then,various control approaches and strategies can be developed effectively.For this purpose,we present a series of important and unsolved problems in indoor air quality control in China:Identify the target indoor air pollutants and the corresponding thresholds based upon China’s indoor air quality situations,develop energy efficient engineering approaches to simultaneously control indoor air climate and quality,and develop the approach of scientific evaluation for indoor air quality control effect.The important scientific and key technical problems behind them are:The method of determining the target indoor air pollutants,the method of determining the thresholds of the target indoor air pollutants,the principle and method to overall control of indoor air climate and quality,the method of scientific evaluation for indoor air quality control effect not only based upon the concentrations of the target indoor air pollutants but also based upon the human health response.We are carrying out a national research project whose title is"study on fundamental problems and key technical approaches in indoor air quality control".Based upon its research advance,we put forward a framework and understanding of solving the aforementioned problems:(1)Determining the target indoor air pollutants based upon the burden of diseases of indoor air pollutants in China.In the study,the burden of diseases of all target indoor air pollutants is obtained so that the overall burden of diseases of indoor air pollution can be roughly estimated.It’s a quantitative index to show the importance of indoor air quality problems in China.(2)Determining the corresponding thresholds of the indoor air pollutants based upon the control feasibility and the health benefit.The healthy benefit can be evaluated by the reduction of burden of diseases of the target indoor air pollutants which can also be equivalent as the reduction of economic loss.(3)Developing inverse problem and variation method to identify the optimal control systems and operative strategies.It’s an original novel approach for indoor air quality control.(4)Developing some partial space and/or partial time control approaches for indoor air quality.(5)Developing novel evaluation method for control effect by using biomarker-based techniques.(6)Narrowing or even removing the gaps between the indoor air quality control related industries.The indoor air quality control standards in those industries shouldn’t conflict each other.(7)Applying various newly-developed sensors and big data techniques to understand the links between the indoor air quality and human health response.New on-line monitoring sensors with acceptable precision,together with some new big-data analysis methods are strongly needed.To tackling the above problems which are related to many disciplines,collaboration among multi-disciplinary research and industries is very important.

我国健康建筑的评价实践与思考

In January 2017,the Assessment Standard for Healthy Building(T/ASC 02-2016)was published.The issue and application of this standard indicates that healthy buildings have developed from labs to field in China.Based on it,the concept of healthy buildings has been gradually implemented in the construction industry and has achieved preliminary results.This paper conducted statistical analysis on the healthy indexes level from 48 certificated projects and quantitatively demonstrated the practical effect of health building projects in China.At the same time,through the analysis of the healthy measures for different types of projects,this study also made a statistical analysis for the operational difficulty of the provisions of the standard in practice,providing practical reference for the continuous updating and improvement of the health building standard and providing reference for the project construction and the manager’s strategy formulation.Specific conclusions are as follows:(1)The health effects of the health building projects are reflected in several aspects:The average annual concentrations of indoor PM2.5 and PM10 are 14.8 and 23.9μg/m^3,respectively;the indoor average annual concentrations of formaldehyde and TVOC are 0.043 and 0.228 mg/m^3,respectively;68.8%of the total hardness of drinking water in the project is less than 150 mg/L(calculated by CaCO3);85.4%of the main functional rooms reached the thermal comfort level of ClassⅠ;the free fitness area takes 1.9%of the total area.(2)The higher the quality of the project is,the better the balance among the healthy elements is.In general,the score of items related to water takes 59%and 55%for comfort,which are significantly lower than that of air(82%),fitness(84%)and humanity(73%).However,the degree of practice completion is relatively low.It is suggested that the standard compilers should refer to the difficulty feedback of project practice in the process of standard revision.(3)According to the difficulty index value from low to high,the provisions are divided into 1-5 categories.Among them,9 provisions(6.2.15,8.2.4,6.2.4,8.2.3,8.2.9,6.2.6,7.2.6,7.2.4,6.2.14)have significant differences in the difficulty index between public construction and residential construction.(4)The non-participation rates of 6 provisions(5.2.3,6.2.4,6.2.15,6.2.16,7.2.6,8.2.8)were 64%,93%,64%,64%,77%and 84%,respectively.There are three types of reasons:Residential buildings do not participate in the evaluation,public buildings do not participate in the evaluation and projects without designated special space do not participate in the evaluation.Therefore,it is suggested that in the process of standard perfection,corresponding measures should be taken to improve the effective use rate of provisions.(5)In this paper,measure provisions in the standard are summarized into 16 technical measures,among which intelligent lighting technology,natural lighting technology and outdoor acoustic environment construction technology score rate are significantly lower.There are obvious differences in the selection of public buildings and residential buildings in terms of indoor acoustic environment control technology,natural lighting technology,fitness site design and child-friendly design.