All Rapid building growth is one of the top environmental challenge especially in developing nations. Kano metropolis Nigeria is rapidly expanding that calls for in-depth study. The aim of the study is to assess the environmental impacts of buildings growth in Kano metropolis Nigeria towards sustainability. Carbon monoxides CO was sensed with the aid of device Gas Sensor by Crown Cone and water sampled was taken from the existing ponds and analysed in the laboratory considering physiochemical properties of suspended particles, salinity, colour and total hardness. Geographical Information System (GIS) was used for the location maps preparation. Both indoor and outdoor carbon monoxides was sensed and recorded in selected local governments. The Outdoor carbon monoxide records of the sampled local governments areas of Kano Metropolis shows that Tarauni and Kumbotso recorded exactly 012 ppm as the highest records and Tarauni local government area maintain the highest indoor carbon monoxide emission also. Dala and Fagge local governments’ areas depicted 011 ppm as the second highest records with regards to outdoor carbon monoxides emission but Dala, Gwale and Fagge local governments portrayed proportionately equal amount of indoor carbon monoxides emission of 008Ppm. In addition, the results of water analysis reveals that suspended solid contents and the salinity level of Shema Pond being more contaminated with (248 mg/l and 25 mg/l) against Hauran Wanka Pond with (61 mg/l and 20 mg/l). Colour and t. hardness of Hauran Wanka Pond indicates 501 ml/g and 0.16 mg/l) which is higher than Shema Pond with (290 mg/l and 0 mg/l). It is strongly recommended to preserve and conserve both water and air resources in the metropolis for suitability.

The study aims to assess the environmental tourism potentials of Mubi Town Adamawa state, Nigeria with the view to make recommendations. The study employed both spatial and quantitative data. The spatial data involves the geographical information system Arc GIS 10.3, and remote sensing used for location map generation. The quantitative data was generated from one hundred structured questionnaires administered to the sampled populations. A systematic random sampling technique was employed for the questionnaire administration. This is because it allows all individual members to be chosen for the administration. Observation and photographing were conducted as part of the data collection. Descriptive statistics were utilized for correlating Environmental Tourism Potential (ETP) and Physical Tourism Potential (PTP). The correlation analysis between Environmental Tourism Potentials (ETP) indicates a strong correlation indicated a significant perfect and positive correlation of 0.01 at 2 Tailed. Additionally, the respondents' perceptions regarding the environmental tourism potentials were ranked according to a score point to get the results of the prioritized environmental tourism products. The findings demonstrate that the mountains and the hills give a good scenario as the first in the raking; good and conducive weather conditions as the second. At the same time, the attractive natural landscape is the third. Conclusively, if the potentials are appropriately planned, developed, and managed, it will attract both local and foreign tourists to come to Mubi town. Two recommendations are proposed development plan preparation and preservation and conservation of the identified environmental tourism potentials.

The study employed both quantitative and experimental approaches, CO and CO2 was sensed and recorded with the aid of Carbon Monoxide Analyzer and Handheld GPS. Four hundred (400) structured questionnaires was administered and Volumetric traffic count was conducted along seven (7) major junctions across the study area. E. View 8 was adopted for the analysis. Carbon Sensing results depict that Fagge local government area recorded the highest out door CO of 012Ppm. On the other hand, Gwale local government is the top indoor carbon emitters with10Ppm. The field survey indicates that types of land uses, densities and nature of socio-economic activities significantly affect both CO and CO2 in the metropolis. It indicates that Tarauni local Dangi Junction’s average daily carbon sensed records is the highest with exactly 19.5 Ppm. Fagge, Dala and Gwale local governments areas precisely record the same of 14 Ppm. The quantitative air quality indicators demonstrate that, the coefficient of determination (R2) reveals that relatively 84% of the changes in the dependent variable (DV) environmental impact was fully captured in the study and therefore changes within the explanatory variables have significant environmental impacts. Traffic count result shows that, Nasarawa local governemnt maintains the most traffic flow with 18957 vehicles records within the study days and the study indicates that interaction of traffic flow in the metropolis significantly increases the air pollution. Recommendation is drawn from the identified issues.