PGM18 in two German families
PGMl-isoenzymes with a mobil i ty slower than a seem to be very rare (Hopkinson and Harris, 1966; Giblett, 1969; Yunis, 1969). Fami ly studies were impossible till now. We observed two not related German families with the allele PGM~ (Fig. 1). The pedigrees are shown in Fig. 2. The compilation of all findings in these families (Table) gives no evidence for linkage. We found these two families within al together 2200 PGMl-investigations. Our observation confirms the suggestion, t ha t PGM~ is a rare allele of the phosphoglueomntase.
Rare phosphoglucomutase phenotypes
1. PGM phenotypes have been determined by starch‐gel electrophoresis in more than 2000 unrelated ‘ English’ people and several smaller samples from other populations.
Study on the gaseous emissions from a landfill
Abstract Emissions from landfills contain a variety of compounds, organic and inorganic, which can create problems with human health. Here we examine the pollutants methane, hydrogen sulphite, mercaptans, sulphur dioxide, nitrogen dioxide and certain volatile organic compounds (VOCs) that are expected to be found in landfill emissions, in order to assess the environmental impact on the surrounding area. Results indicate that the concentrations in the landfill itself are quite high and in most cases above the ambient air quality limits, while for the surrounding area they are low. The problem is created by H 2 S and the mercaptans which, although in low content, have a distinct odour and cause problems to the neighbouring dwellings.