The present paper investigates the lead concentrations in wines manufactured and consumed in Oltrepo Pavese. 154 samples of wine were analyzed; 62.3 % shows a lead concentration ranging from 25.5 to 99.12 μg/l; 26% ranges from 100 to 197 μg/l; 5.85% from 200 to 276.47 μg/l and finally, 5.85% (9 samples) have concentrations above 300μg/l. This exceeds the current maximum limit set by Italian law. From a normative point of view, the wines analyzed can be considered to be of 'good' quality with the exception of those exceeding the legal limits. However, formulation of a hygienic- sanitary opinion requires determination of the amount of metal in the daily intake of wine in a normal diet. These intakes assessed as minimum, average and maximum concentrations measured, refer to standard adult subjects classified as light, average and heavy drinkers in relation to their intake of wine; lead intakes were then compared with PTDI (provisional tolerable daily intake) levels extrapolated from WHO PTWI (provisional tolerable weekly intake). The reference level was exceeded in all cases considered when the estimated intake was calculated on wines with the highest lead levels (only 210 ml are necessary to reach PTDI). Therefore, wine is confirmed to be an important source of lead exposure, at least in a large part of the population and leading to hypothesizing on the possible influence on lead levels in heavy drinkers.
|Title of host publication||Journal of Preventive Medicine and Hygiene|
|Number of pages||6|
|Publication status||Published - 1993|
ASJC Scopus subject areas
- Public Health, Environmental and Occupational Health