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 ...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 展开更多
【目的】揭示凡纳滨对虾(Litopenaeus vannamei)糠虾期健康和发病育苗池水体菌群结构差异。【方法】从健康和发病育苗池各采集3份水样,提取水样基因组DNA,利用Illumina Mi Seq测序技术对其进行16S高通量测序,分析菌群结构组成与多样性,...【目的】揭示凡纳滨对虾(Litopenaeus vannamei)糠虾期健康和发病育苗池水体菌群结构差异。【方法】从健康和发病育苗池各采集3份水样,提取水样基因组DNA,利用Illumina Mi Seq测序技术对其进行16S高通量测序,分析菌群结构组成与多样性,并筛选指示健康状态的水体菌群。【结果】健康苗池水体菌群多样性和均匀度均显著高于发病苗池(P<0.05)。健康苗池中放线菌门(Actinobacteria)及其微杆菌科(Microbacteriaceae)、拟杆菌门(Bacteroidetes)及其圆杆菌科(Cyclobacteriaceae)和黄杆菌科(Flavobacteriacea)、β-变形菌纲(β-Proteobacteria)及其丛毛单胞菌科(Comamonadaceae)、庞微菌门(Verrucomicrobia)及其分类未定科(OTU9),均优势存在,且序列丰度显著高于发病池(P<0.01);相反,发病池中α-变形菌纲(α-Proteobacteria)及其红杆菌科(Rhodobacteraceae)和Stappia_f科、γ-变形菌纲(γ-Proteobacteria)及其交替单胞菌科(Alteromonadaceae)丰度均显著高于健康池(P<0.01)。属水平上,发病池红杆菌科4个分类未定属(OTU1、OTU6、OTU64、OTU123)、亚硫酸杆菌属(Sulfitobacter),以及交替单胞菌科交替单胞菌属(Alteromonas)丰度均显著高于健康池(P<0.01),而微杆菌科Limnoluna与Rhodoluna属和红杆菌科一个分类未定属(OTU4)丰度均显著低于健康池(P<0.01)。【结论】健康和发病糠虾期育苗池水体菌群结构和多样性存在显著差异,属水平上丰度差异显著的优势菌群可作为苗池健康状态指示菌群。展开更多
文摘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
文摘【目的】揭示凡纳滨对虾(Litopenaeus vannamei)糠虾期健康和发病育苗池水体菌群结构差异。【方法】从健康和发病育苗池各采集3份水样,提取水样基因组DNA,利用Illumina Mi Seq测序技术对其进行16S高通量测序,分析菌群结构组成与多样性,并筛选指示健康状态的水体菌群。【结果】健康苗池水体菌群多样性和均匀度均显著高于发病苗池(P<0.05)。健康苗池中放线菌门(Actinobacteria)及其微杆菌科(Microbacteriaceae)、拟杆菌门(Bacteroidetes)及其圆杆菌科(Cyclobacteriaceae)和黄杆菌科(Flavobacteriacea)、β-变形菌纲(β-Proteobacteria)及其丛毛单胞菌科(Comamonadaceae)、庞微菌门(Verrucomicrobia)及其分类未定科(OTU9),均优势存在,且序列丰度显著高于发病池(P<0.01);相反,发病池中α-变形菌纲(α-Proteobacteria)及其红杆菌科(Rhodobacteraceae)和Stappia_f科、γ-变形菌纲(γ-Proteobacteria)及其交替单胞菌科(Alteromonadaceae)丰度均显著高于健康池(P<0.01)。属水平上,发病池红杆菌科4个分类未定属(OTU1、OTU6、OTU64、OTU123)、亚硫酸杆菌属(Sulfitobacter),以及交替单胞菌科交替单胞菌属(Alteromonas)丰度均显著高于健康池(P<0.01),而微杆菌科Limnoluna与Rhodoluna属和红杆菌科一个分类未定属(OTU4)丰度均显著低于健康池(P<0.01)。【结论】健康和发病糠虾期育苗池水体菌群结构和多样性存在显著差异,属水平上丰度差异显著的优势菌群可作为苗池健康状态指示菌群。