For this work PM10 were collected from 7 stations within the area of North Phra Nakhon campus Rajamangala University of Technology Phra Nakhon Thailand. The samples were collected within 24 hours from January to April 2015. The result shows that the concentrations of PM10 values are in the range of 0.06 - 0.16 mg/m3 and average PM10 of 0.09 mg/m3. The maximum PM10 were found in front of the university. The comparison of maximum PM10 with the standard value of Pollution Control Department (PCD) was slightly over but did not affect human health.

The objective of this research is to develop the additional skill toy product from dust mite defending fabric. There are categories into three products: 1) without the decoration 2) cartoon printing 3) colorful fabric which is wrapping the toy. It can be divided into 3 styles of this product : 1) the geometry style (triangle square hexagon) the ring toss style and the jigsaw style. The sample of this research are 100 children who are aged between 2-6 years old for using the purposive sampling 100 parents and 100 general interested people for the accidental sampling. The instrument used for collecting data was quality assessment of this product on the opinion of children group between 2-6 years old parents group and general interested people group. The findings of this research were as follow: In term of children between 2-6 year old they like the colorful fabric which is wrapping the toy and they choose mostly the ring toss style followed by the cartoon printing and the ring toss style. In term of parents group mostly female between 21-30 years old bachelor degree or equivalent housewife monthly income between 7501-10000 baht have never seen this product and they think that the using material is suitable. Besides they like the geometry style in colorful type for decorating the printing method and colorful fabric which is wrapping the toy as well as the choosing product should realize the important health. Moreover they like very much the decoration of cartoon printing in the ring toss. In case of product they like the geometry about size style and suitability. In term of general interested people group mostly female between 21-30 years old bachelor degree of equivalent students no monthly income have never seen this product and they think that the using material is suitable. Besides they like the jigsaw style in color type for decorating the printing method as well as the choosing product should the important health. Moreover they like the decoration of colorful fabric which is wrapping the toy in the geometry style. In case of product they like the geometry about size style and suitability.

This research was to determine the appropriated mixing ratio of bottom ash and admixture (dust rock and Portland cement type 1) for improving the compressive strength. Bottom ash was used instead of soil and the quantities of admixture were 0 2 4 6 8 and 10% by dry weight of bottom ash. The specimens were cured for 7 14 28 and 90 days. Results of compressive strength test show that the admixture of 8% was the best mixing ratio. The increasing primary strength is developed from hydration reaction and the increasing secondary strength at 90 days is developed from pozzolanic reaction. Moreover the compressive strength of this specimen is close to the compressive strength of laterite

Dust is a major problem to effect of health especially in formal sector that is not covered by health benefits. This study was proposed at investigating the total dust and particulate matter (PM10) of workers in Thumley Teptaro Wood Handicraft industry Trang Province. Survey and sampling of dust from all operators were collected three replications using a tracking ID on working period. The results showed that were two groups of Thumley Teptaro Wood Handicraft industry that total dust were 7.7540+1.3110 and 14.4162+0.9265 mg/m3 and PM10 were 8.6134+1.4806 and 4.5279+0.8743 mg/m3 respectively. Total dust and PM10 were significant difference (P<0.05). PM10 in the wood product process of Thumley Teptaro Wood Handicraft industry were 3.3422+0.6685 2.9630+0.3050 and 4.5279+0.8743 mg/m3 in sawing frog style and polishing respectively. This result indicated that total dust and PM10 in all production process of Thumley Teptaro Wood Handicraft were not exceed the standard of Occupational Safety and Heath Administrstion and the notification of Interior Ministry about safety environment in workplace. Working behavior was found that workers were affected by total dust and PM10 in wood production process. All workers used dust protector during operators work.