کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6324265 1619743 2016 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Tracking progress towards global drinking water and sanitation targets: A within and among country analysis
ترجمه فارسی عنوان
پیگیری پیشرفت به سوی اهداف آب آشامیدنی و بهداشت جهانی: تجزیه و تحلیل در داخل و بین کشورها
کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم محیط زیست شیمی زیست محیطی
چکیده انگلیسی


- Global analysis shows an underlying sigmoidal trend over time.
- Non-linear trajectories (acceleration, saturation, and deceleration) are common.
- Different trajectories can help distinguish countries with different needs.

ABSTRACTIntroductionGlobal access to safe drinking water and sanitation has improved dramatically during the Millennium Development Goal (MDG) period. However, there is substantial heterogeneity in progress between countries and inequality within countries.MethodsWe assessed countries' temporal patterns in access to drinking water and sanitation using publicly available data. We then classified countries using non-linear modeling techniques as having one of the following trajectories: 100% coverage, linear growth, linear decline, no change, saturation, acceleration, deceleration, negative acceleration, or negative deceleration. We further assessed the degree to which temporal profiles follow a sigmoidal pattern and how these patterns might vary within a given country between rural and urban settings.ResultsAmong countries with more than 10 data points, between 15% and 38% showed a non-linear trajectory, depending on the indicator. Overall, countries' progress followed a sigmoidal trend, but some countries are making better progress and some worse progress than would be expected. We highlight several countries that are not on track to meet the MDG for water or sanitation, but whose access is accelerating, suggesting better performance during the coming years. Conversely, we also highlight several countries that have made sufficient progress to meet the MDG target, but in which access is decelerating.DiscussionPatterns were heterogeneous and non-linearity was common. Characterization of these heterogeneous patterns will help policy makers allocate resources more effectively. For example, policy makers can identify countries that could make use of additional resources or might be in need of additional institutional capacity development to properly manage resources; this will be essential to meet the forthcoming Sustainable Development Goals.

110

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Science of The Total Environment - Volume 541, 15 January 2016, Pages 857-864
نویسندگان
, , , ,