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Investigation on iodine content in drinking water of Shandong Province in 2017 / 中华地方病学杂志
Chinese Journal of Endemiology ; (12): 278-281, 2020.
Article in Chinese | WPRIM | ID: wpr-866115
ABSTRACT

Objective:

To investigate the distribution of iodine in drinking water in Shandong Province, and to provide a basis for redefining different types of iodine in drinking water, adopting specific prevention measures and scientifically adjusting intervention strategies.

Methods:

In 2017, a survey on the distribution of water iodine in the whole province was carried out in townships (street offices, hereinafter referred to as townships). In addition, the administrative villages (neighborhood committees, hereinafter referred to as administrative villages) shall be taken as the units for the investigation of townships with a median water iodine of > 10 μg/L or more found in this or previous surveys. Arsenic-cerium catalytic spectrophotometry was used to detect water iodine.

Results:

A total of 1 844 townships were surveyed, with a median water iodine of 9.2 μg/L. Among them, there were 969 townships with water iodine of less than 10 μg/L, accounting for 52.55%. From 10 to 40 μg/L, 489 townships, accounting for 26.52%; There were 139 townships with > 40-100 μg/L, accounting for 7.54%; there were 247 townships of > 100 μg/L, accounting for 13.39%. A total of 37 073 administrative villages were surveyed in the townships with a median water iodine of > 10 μg/L, and 36 690 were collected with valid data. Among them, 5 531 villages with water iodine < 10 μg/L, accounting for 15.07%; there were 17 350 villages with 10-40 μg/L, accounting for 47.29%; there were 4 859 villages of > 40-100 μg/L, accounting for 13.24%; the number of villages > 100 μg/L was 8 950, accounting for 24.39%.

Conclusions:

In Shandong Province, most areas are iodine deficiency area (water iodine < 10 μg/L), waterborne high iodine areas (water iodine > 100 μg/L) and "optimal iodine" (water iodine 10-100 μg/L) regions exist, and there is the possibility of dynamic adjustment of water iodine. In the next step, the dynamic monitoring of iodine nutrition in water and population should be strengthened to provide data support for the adjustment of iodized salt supply strategy.
Full text: Available Index: WPRIM (Western Pacific) Language: Chinese Journal: Chinese Journal of Endemiology Year: 2020 Type: Article

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Full text: Available Index: WPRIM (Western Pacific) Language: Chinese Journal: Chinese Journal of Endemiology Year: 2020 Type: Article