Fermentation yields of Lactobacillus plantarum were measured at controlled p H between 4.0 and 8.0 and initial lactate concentrations of 0-90 g/1. Optimal growth conditions at p H 6.0 without addition of lactate gave a growth rate of 0.57 h -1 and 20 g dry biom a s s / m o l ATP formed (YATP). The p
The influence of pH and household plumbing on water lead concentration
β Scribed by Gillian M. Raab; Duncan P. H. Laxen; Niall Anderson; Steve Davis; Michael Heaps; Mary Fulton
- Publisher
- Springer Netherlands
- Year
- 1993
- Tongue
- English
- Weight
- 776 KB
- Volume
- 15
- Category
- Article
- ISSN
- 1573-2983
No coin nor oath required. For personal study only.
β¦ Synopsis
The water lead concentrations measured in the I~omes of children who were part of the Edinburgh Lead study are related to the characteristics of the water supply and the household plumbing. At the time of the study one of the City of Edinburgh's two water supplies was lime treated to reduce plumbosolvency but in the second supply this treatment had not yet become effective. This allows us to estimate the extent to which this type of water treatment reduces water lead concentrations, in houses with lead plumbing, to comply with existing and proposed limits for lead in water. The kitchen cold water was supplied from a lead storage tank in 69 (15%) of the houses. These houses had the highest lead concentrations and water treatment alone is unlikely to bring them down to comply even with current statutory limits.
Fairmilehead supply (n=4)
"I-Q.
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